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5 volts ballast

Can I have the circuit for the 5 volts cfl lamp ballast. Please! Thanks.

Topic by remyjovero    |  last reply

Microwave transformer ballast

I recently got a working microwave transformer for free, it has unknown wattage, though. What's the best way to ballast it? Some people use lightbulbs, I'd rather not use lightbulbs cause that's almost as dangerous as the lightbulb it's self (I'm comfortable with the transformer, I'm not comfortable with a 500 watt lightbulb, ironic?) No saftey speeches, please, lol.

Topic by guyfrom7up    |  last reply

How To Ballast An MOT

I'm wondering how to ballast an MOT... I only have 2 and I want to use one as the ballast .. how would I wire it so the other one will work As a ballast.. please no schematics I'm not good with schematics but I am with the basics .. just visually instruct me on how to please .... or with as much detail if you explain in text .. btw one is bigger and the other one is smaller..

Question by TaeronR    |  last reply

TV ballast board.

Just harvested a ballast board along with the lamp out of a rear projection tv and was thinking about making a Jacob's ladder with it since it outputs a suitably high enough voltage.  My only problem is bypassing the 'power on' signal to the circuit to instead manually switch the lamp on and off.  Does anyone have knowledge of the circuitry that would allow me to accomplish this?

Topic by alset84    |  last reply



Question by ISAC CLARK    |  last reply

Metal hallide ballasts - projects using?

I had to buy 2 salt water aquarium ballasts because they where dirt cheap, solid and shiny. I have no use for 2 shiny MH ballasts. Any suggestions for projects? Practical, informative or destructive? Not necessarily in that order ....

Topic by bmiller91    |  last reply

Please help me with my T8's

Hey, I am a complete noob to wiring diagrams and I have a few questions. Here is the wiring diagram on the ballast and I would like to know how to add the extra bulb to it as at the min it is wired up to power only 1 bulb. The make and model is "HELVAR L30A" 1. Where do I put the (I think its called) start plug? Currently it is connecting the two end caps that power the one bulb. Also do I need two start plugs to power two bulbs or only one? 2. Which wires and where do I plug them into the ballast? Currently it looks like this. I would be really greatful if you could explain how to do this and it would help me alot if you could translate the Wiring Diagram into a more child friendly version like I used for the current setup :) THANK YOU SOO MUCH!!!

Topic by josh40996    |  last reply

Sodium grow light ballast to car dc-ac inverter. Can it be done ?

Story be this my friend. I have a few 1000watt grow light inverter/ballasts. Turns out i can't afford the electricity needed to run these. Soooooo I'm wondering if i can convert them into a dc-ac inverter. For use in a mobile home or in my car for....something I'll figure some use for it. Could also just be a fun project. Point being Id like to see these re purposed for something useful. I didn't pay much for them (lucky thrift shop find) And i dont want to use it for running lights on 12v or whatever. Thats all i can seem to find on this subject in google. And i can solder and very well..i think. 

Topic by williamb349    |  last reply

what can we do with ballasts and starters?

I have ballasts and starters of an old flourescent bulb for i was able make it work after i used circuits from busted CFL's now is there some way we use this in another purpose

Question by jovenhatsjr    |  last reply

what are possible causes and solutions for low output voltage on a HID ballast? Answered

HV starting pulse is normal, but then output voltage drops to around 1.5-2VAC.  no obvious damage to PCB or components within.

Question by    |  last reply

What resistor for 12v HID?

How do I create a cheap " ballast" for an hid globe in my boat. 12v static and whilst charged by outboard stator.  Do I need one? 

Question by gordyguy    |  last reply

Lightbox from old scanner

Hi, Ive got a question if you don't mind, im trying to make a light box from a old scanner and im not sure what lighting I should do, what im thinking is to use this ( but im not sure if it would be powerful enough. I was thinking about using t5 but I don't think they would fit as the scanner is really thin about 18mm without the glass in. Also would I need anything in in front of the glass at all? Cheers Phil

Topic by drop_dead_fred    |  last reply

What does the blue lead on a magnetic ballast do? Answered

I have a ballast that I want to connect to a transformer, The ballast has two red leads, a black lead, a white lead, and a blue lead. I have no idea what the blue lead is for, or if it's even necessary. Can someone help?

Question by Shagglepuff    |  last reply

How to ballast an MOT with another Mot and have it to have resonance at the same time?

So I have two MOTS and 3 MOC'S (microwave oven capacitors) and I'm wondering how I can wire it to be ballasted and to also have resonance at the same time.. If that's possible.. Because I'd like to have it ballasted but ballasting limits current which in turn gives you smaller arcs so I want to wire it to have resonance so I can have big arcs while still having it ballasted.. Someone please help quick!..    To make it simple I wanna know how to wire two MOTS to be ballasted and also have resonance.. An idea came to mind if I have two MOTS I can wire one to act as an inductive ballast but Idk how to so that's why I came here but I could do that after I figure out from you guys and then maybe I could use one capacitor to act with the inductive ballast and use the capacitor as a second ballast for capacitive ballasting go work along with the inductive ballast.. Anyway Just help me with wiring it to be ballasted and how to wire it to have resonance while ballasted.. And if I can use both the 2nd mot and the capacitor to both work as ballasts at the same time.. Thank you c: No homo but much love if you take your time to help me c; <3 P.s.  Both MOTS are atleast 1000 to 1100 watts and let off 2000 volts minimum and atleast 20 to 30 amps when arcs are being made because my circuit breaker always trips on the wall panel with all the breakers to everything in the house and capacitors are atleast 0.80 to 0.98 uF.. And have a max capacitance of 2000 to 2200 volts minimum.. I can't afford my own circuit breaker to wire to any of the MOTS nor thecapacitor s and can't afford a wall plug thing to wire to a switch either.. So limited on some things..

Question by TaeronR    |  last reply

electronic ballast flyback driver...can i wind the wires around the primary of the flyback?

I have a electronic ballast and a flyback . I am having problems finding the primary coil pins of FBT because i dont have a multimeter. so i was just thinking that can i wind two ballast Vout wire around the flyback primary (the metallic structure , or whatever you call it) there are total 6 wires on the E-ballast. two are for input and 4 for output. the output wires are in sets of grey and white wires.  I was thinking that i will take one grey wire and wind it around the fbt primary(metal thing) and then connect it back to white wire. is this correct? also can i wound a feedback coil from the other 2 wires? PLEASE ANSWER....................ANY HELP WILL BE APPRECIATED. : )

Question by SHREYANSH_HV    |  last reply

What's the cheapest way to run all these F15T8 fluorescent tubes?

I have a bunch of F15T8 fluorescent tubes, and I want to make my own light fixture with something like 4-8 of them running at the same time. Doing some research has shown me that I need a ballast. Nearly all of the ballasts I found online for f15t8 were only for 1 or 2 lamps, and I don't really want to buy more than one. Is there any way I can use a ballast rated for a higher watt bulb or something? What happens if you put a F15T8 in a F32T8 ballast? 

Question by conrad141  

Convert Sharp vision projector to LED? Answered

 I have a Sharp Vision projector that my parents had laying around. It's pretty old and worked for a few days, but now im getting a blinking green light, and a quick google search said that meant the ballast needs to be replaced. I was wondering since there is already an existing lcd and lens in the projector if I could gut the ballast and bulb out and replace it with a set of high powered LEDs. I saw a hackaday article not to long ago of a  high powered flashlight.....maybe the same tech inside of a projector. Ideally id like to be able to produce enough light to start Projection bombing on the side of my garage.  Thanks for any feedback

Question by bearrden    |  last reply

Can a fluorescent light ballast be used to drive a Tesla Coil?

I'm thinking of the newer 'magnetic' high-frequency ones, or maybe even a CFL ( Of course a ~15 Watt CFL isn't going to output very much though.

Question by PhahQ    |  last reply

Is it possible to build a spark gap using a fluorescent light ballast?

This is for a school project. We need to build a spark plug out of an LRC circuit and a 1.5 V D size battery. I was hoping to do it with a fluorescent light ballast as an inductor. The longer the spark in distance, the better.  Thanks.

Question by paul0    |  last reply

New ballast (starter) on overhead fluorescent lights causing static on AM radio reception - how to fix?

Ballast (starter) recently replaced on overhead fluorescent lights. Now getting static on AM radios in my apartment. Is there a way to stop this?

Question by verbatim5613    |  last reply

could someone please build an electric copper bonsai tree? thanks!

Hi peeps! I was thinking the other day that I would LOVE to see one of those handmade copper bonsai trees (like these ones ) inside a plasma ball, with electricity arching across branches and so on. Either that or two of them side by side forming an electric Jacob's Ladder?? But I don't know how to make one. Does anyone want to make one - if possible - and show me? I have a neon light ballast and some time on my hands, I'd love to try this! Cha cha!

Topic by damianzuch    |  last reply

can a fluorescent light be connected in series to another tube on the same ballast?

Im trying to add more bulbs a  fitting thats designed for 1

Question by andybuda    |  last reply

Is this the right way to make a 2 MOTstack and is this the right way to ballast it with a MOT? for a tesla coil?

I just want to be a 100% sure that i did this right before i plug this thing in, because i don't want to kill the transformers or myself :D So if you guys could confirm that i did this right (or not and if not why) i might feel a bit more comfortable :) thanks for all the help! love this community and tesla coils! explanation: powersupply: 2 mots with the secondaries placed in series while the primaries are paralleled ballast: 1 mot with the secondary shorted (both ends to the core) and grounded to the mains ground the neutral wire from the mains is directly connected to the 2motstacks first primary while the hot wire from the mains is connected to the ballast it's primary and then to the 2motstacks first primary finally i taped one 2000V terminal to the wooden box and the other 2000v terminal to a 4ft PVC pipe that acts as a chickenstick Did i do this correctly? here is the picture with explanation from what i did

Question by colinbarnes    |  last reply

DIY Projector bulb problem ?

In reading some of the instructables on DIY projector lamp replacements I decided to give it a shot. So I purchased a Proxima Ultralight LX1 off of ebay, and when it arrived it contained no previous bulb, so I purchased a MR16 style 100 watt halogen bulb and installed it (with a seperate power supply). When I started it up and connected it to my laptop it worked fine for about a minute or so (give or take) but then the image went blank (not the bulb but the LCD screens showed blackness) for five seconds, then the image popped up as nothing had ever happened. I have tried everything to prevent this, other computers, killing the ballast (which is quite easy, only one wire to disconnect) different video sources and no dice. But I do know that it has nothing to do with the light bulb because it is on a completley different power supply and is not connected electronically to the projector in any way, there is something wrong with the controls of the unit Any Help would be appreciated, Thanks Bwpatton1

Question by bwpatton1    |  last reply

How do you build a fluorescent light from scratch and have it plug into the classic American outlet?

I am not asking how to build the bulb. Just attach the bulb+ballasts+plug it in. I want to build several letters out of fluorescent light bulbs, for example one letter is O but it will look more like []. I want to use bulbs that are 2-4 feet long or what ever is easiest... from scratch (without buying light fixtures and taking them apart). Each letter will be constructed of 4 lights. I know that I will need to solder parts together, I will need to buy ballasts, and bulbs... But construction wise I am semi lost. Also I would like recommendations as to how many ballasts for the bulbs, I don't mind if some of the bulbs flicker. Lastly I want the bulbs to make that humming noise so if you have any idea how I can induce that other then leaving the ballasts running for a while please tell me. Thanks, -Oliver

Question by Art-ist    |  last reply

Using a old burn out CFL replacing with LED using the CFL electronic ballast?

 Hi i have several burned CFL lamps that i want to convert to led using the N26 screw and ballast of the cfl to replace the ones in my lighting Thanks

Question by antonoso    |  last reply

High voltage transformer current limiting?

I have modified a MOT to output 10kV as a Tesla coil power supply but when testing I found that there was a very low voltage (maybe 2kV). The primary resistance was measured at 0.2ohm much less than the inductive ballast I've used to current limit. Is the voltage being drawn away from the primary to the ballast? If so how can I resolve this (keep in mind even with the ballast it still needs further current limiting)?

Question by The MadScientist    |  last reply

Has anyone put up or feel like putting up a guide for high pressure sodium ballast construction?

I'm looking to build a 400 watt high pressure sodium ballast with mogul light attachment, I kinda would like a step by step guide though, thanks!

Question by theshiv303    |  last reply

Way to control two fluorescent bulbs in the same fixture individually?

I would like to set up a few fluorescent light fixtures that each have one blacklight bulb and one white bulb. I would like to be able to control them individually so that I can have either the blacklight bulb or the white bulb on at any given time. It would be preferable to be able to dim the white bulbs, but this isn't necessary. I am okay with running a 14/3 power cable assuming two ballasts would fit in one fixture. I would also like to accomplish this as cheaply as possible.  Thank you.

Question by natedawg1013    |  last reply

Step up transformer?

 i need to step 90vac (ballasted) to 300v any help  or if 9-18vac 2a is easier 

Question by R.A.T.M    |  last reply

LED flourescent tube replacements

Hey all.I scored some cheap LED drop-in replacement tubes and intended to get some old fluorescent light fixtures up and working again.Unfortunately the fixtures' ballasts seem to be bad -- which I suppose is no great surprise since they were taken out of service for a reason.My question is, even though the LED's I've got are intended to be used with a ballast, can I simply wire them directly?I don't see that a ballast does anything to the frequency/voltage, and according to Wikipedia its purpose is "to stabilize the current through the lamp, and to provide the initial striking voltage required to start the arc discharge". LED's shouldn't care about any of this.Or is there something I'm overlooking?

Question by PS118    |  last reply

Fluorescent bulb questions ? Answered

Hello, Short question but sorry,  I cannot seem to shorten it; the actual question is in the last two lines . My friend's outside light stopped working; Earlier today I was asked to replace the two bulbs; they had stopped working and seemed slightly brown on the ceramic part. They are four pin fluorescents; I have not used these type before. I went to Screwfix and their catalogue showed two bulbs that looked identical to the original but one model said for electronic ballast only and one type said for magnetic ballast only; the shop staff did not know what a ballast was and could not advise me, when looking at the original, which type to buy. I went to Toolstation , no such distinction was made in their catalogue; I asked the guy about the ballast suitability; he did not know what a ballast was; I bought the one that seemed the closest in name. I have never has to think about ballast types before buying a bulb before; but after buying the bulbs I found a sticker on the lamp saying -electronic ballast. I stuck the first bulb in, it did not light. I put the bulb, instead, into the next socket; it lit and stayed lit. I put the remaining bulb in the first socket and both bulbs stopped working; whatever combination that I tried. The original bulb was an Osram Dulux D/E 26w/840 The  new bulb is a  sylvania lynx-de superia 26w 840  G24q-3 Technical Details Brand Sylvania Item Weight 9 g Product Dimensions 16.6 x 3.6 x 3.6 cm Item model number 25927 Part Number 0025927 Colour Cool White Shape Stick Maximum Compatible Wattage 26 watts Voltage 240 volts Specific Uses General purpose Batteries Included? No Type of Bulb Compact Fluorescent Light (CFL) Cap Type G24q EU Energy Efficiency Label A Luminous Flux 1800 lumen Wattage 26 watts Wattage 26 watts Bulb Features Low energy plug-in compact lamp Colour Temperature 4000 Kelvin Colour Rendering Index (CRI) 85 Average Life 10000 hours Average Life 15000 hours Bulb Length 167 millimetres Warm Up Time 30 seconds Lumen Maintenance Factor at the End of Life 95 I still do not know if it was the correct bulb or not but . . . Here are the questions:   Are some bulbs suitable for both types of ballast ? What happens if you put the wrong type in; does it just not work; or does it blow the bulb; or/and does it damage the lamp? Thank you

Question by FriendOfHumanity    |  last reply

How can i keep my MOT from drawing to many amps and why dose it heat up so much when I draw arcs?

I just made a 3 phase MOT power supply and it's fun to play with (while being safe) but every time I use both phases it trips the breaker after only 2 arcs, sometimes it trips just from plugin it in, I am using a PFC cap on the mains side as well as a long extension cord, I have one of the transformers ballasted, and one of them has 3 MOC's in series on its output, the breaker can handle one of them just fine...for a little while. Is there any thing else I can do besides buying a bigger breaker switch? I'd say mine is 20A but i dont know for sure.  Every time I draw arcs from my MOT it heats up really fast really hot, I am using the same setup as above , the only thing I can think of is to submerge it in oil but I dont want to do that because I'll want to make changes to it. What makes it different from a welding transformer in that they are made to draw arcs from but when you draw an arc from a MOT its a direct short and will eventually destroy the transformer?

Question by Jimmy Proton    |  last reply

replacing balast in flouresent light fixture?

Looking for instruction on replacing ballast in fluorescent fixture in my kitchen. Also the drop ceiling panels are going to be replaced. How should I cut to fit?

Question by paulinoB    |  last reply

LED Light Box

Normally, a light box uses fluorescent lamps (e.g. 36 watts Philips Lamp) and electronic ballasts to emit light. However, it consumes too much electricty and the life of lamps is short. Therefore, I would like to replace fluorescent lamps with LEDs.

Question by richardkartono    |  last reply


Charging for the print book and the classes you are pushing on us is like Microsoft forcing us to download windows 10 and it bricking the screen or the $1500 computer then running a message your equipment does not match and you need to update and now you have ballast to put corner weight in the race car 

Topic by hdrideblue    |  last reply

information required about &quot;NEC D882 PNP-transistor&quot;?

I need help and instructinos about "NEC D882 PNP-transistor" i want to use it in lamp ballast.. tell me the other equivelent transistor.... the maximum volt and current we can give to these transistors.... thanks

Question by bilalinpk    |  last reply

LP580projector ?

I am annoyed at having to pay more for the replacment bulb than I paid for my Projector . So I was wondering if there is a way I can supply a 24 v 250w bulb I have ( projection type ) that will fit into my infocus housing . I beleive that the unit can sense the bulb not working and shuts the projector down , but I have been unable to obtain a circuit to follow the neg line back to see if that was the sensor line that controls shut off command . The unit is a LP 580 and it has a sepperate Ballast circuit within the PSU module I was wondering if removing that and if I was to bridge the relay would do the job . then where the Ballast circuit came from I could build a 24v supply for the cheaper lamp .. Regards Vortash

Question by vortash    |  last reply

HELP, I NEED / desperately want A SUPER BRIGHT FLASHLIGHT for camping / boy-scouts [answered]

Inappropriate Incomplete Spam first thing first, i want absolutely the BRIGHTEST flashlight i can my hands on! how many lumen's should i shoot for (to impress others)? 100, 270, 350, 600, 900, 1500, 3600, 5000+ (5000 Lm i pretty sure is overkill)? i have an led flashlight i got for 12$ and is advertised to be over 600 Lm but I'm pretty sure its maximum is 70Lm. (it seems to be slightly brighter than the 9 LED tactical flashlight i had) but I'm not sure. i have no light meter. the LED itself is (as advertised) is CREE (i don't believe that either but again, I'm not sure).   i would like to make portable HID flashlight. my plans are to: BUY: 6V LANTERN HID KIT (BULBS) HID BALLAST 12V BATTERY (I"m not sure where i could find a suitable 12-15V 35W [or more] battery that will fit nice and snug in the lantern with room for the ballast. the battery should last almost a week with some moderate use.) i think a drill battery would work. i will take the original light out and replace it with the HID. then, i will need to find a place for the slim ballast [but where???] . then,i need to find a battery (i think a 12V drill battery should work [will a 14.4V drill battery with the case off fit in the modified 6V lantern flashlight? if so, where can i buy a affordable and well suited 12V-16V battery?] if there isn't any small, powerful (and preferably cheap), battery in existence? [4 by 4 by 2 array of AA rechargeable batteries seems promising and so does 6^2 by 2 array seem promising. 6 by 6 by 2 AAA] will the ballast and lamp work with less power (6W-34W)? is there a simple and small ballast circuit schematic i can follow? i never found one. so i assume no. :-( also is the 5000K neutral white, warm or cool? (i think it is the closest to neutral white with a VARY slight blueish tint) i think i got a grasb on this and i want 6000K (i want something led white but still bright and useful enough to easly see what i'm doing on campouts)

Question by -max-    |  last reply

Fluorescent light wiring diagram wanted

Fluorecent light wiring diagram:Could anyone help me with a wiring diagram for a fluorescent light, double tube, tube have 2 ins each side, two starters a capacitor and a ballast with two wires. I have all the parts but don't know how to join them together?

Question by Sa Wolf    |  last reply

CoilGun science project

Ok, i'm doing a science project and I chose to use the Coilgun-Handgun Instructable to build a coilgun and test its damage and lethality on human flesh using a piece of ballastic gelatin. Does anybody know if there is a way to measure the damage against the gelatin or another experiment i could do with the gun?

Topic by renkun67    |  last reply

how can i build a flourescent lamp that operates on 12 vdc?i want to build one like i saw on fishing lights .com

Anyone know how to go about getting the proper ballast to make it run on 12 volts dc?where i could get one?

Question by hvacmac    |  last reply

Free energy via adjusting buoyancy- why not?

Hypothetical setup- a floating object which can adjust its own buoyancy via ballast tanks full of air (if it's a submarine) or compressing/expanding a helium bag (if it's a blimp).  Naively, it feels like the amount of energy you could harness by letting it float and sink is a lot compared to the amount of energy required to adjust the buoyancy, but I'm starting from the axiom that free energy is impossible so I must have made an error somewhere. If we take the example of a submarine, is it that filling the ballast tanks with air effectively raises the sea level by a tiny fraction, and that water's potential energy is what makes the submarine float upwards? I guess in the case of a helium balloon, the act of inflating it pushes the atmosphere upwards and that is what provides it with lift.  This question was prompted by a Youtube video of a hybrid helium-balloon-airliner that used buoyancy to reach altitude and then glided back downwards, which made me think "that's quite a neat idea... hang on... where does the energy come from?".

Topic by PKM    |  last reply

Can Flyback Transformer drive by Induction Oven? Answered

Can Flyback Transformer drive by Induction Oven? I thing Induction Oven can create 20kHz-40kHz. And Flyback Transformer need high frequency to work. I thing waveform is not a problem. I used plasma ball driver , CFL ballast driver and Halogen Transformer as my FBT driver . And work well.

Question by james34602    |  last reply

Can I driver a transformer in multi primary coil? Answered

I have my flyback transformer. I use a CFL ballast to test the primary coil pinout I found (Pin 1,Pin 2) , (Pin 1,Pin 3) , (Pin 1,Pin 4) is the primary coil pinout Can I drive it with multi primary coil to get maxium voltage of it

Question by james34602    |  last reply

How does an inverter look like? Answered

I happen to have a broken CFL lamp. I took it apart because i wanted to harvest the components that the electronic ballast contains.So how does a DC to AC CFL inverter look like? And how can i use the transformer and the inverter in order to make an electric shocker(battery powered)? Note that i also possess 2 other transformers from Kodak disposable cameras(one of them has 4 pins as the CFL's transformer and the other 5 pins) Thanks in advance.

Question by deathnoteviewer    |  last reply

What Capacitor size for a 4 stack MOT Tesla coil?

I have just bought a 4 stack MOT transformer in a case and oil filled it says 8.6kv on it but no idea of amperage, I have a large variable ballast and hooked it up to my test jacobs ladder and it pulls about 10amp and really fires the ladder well. My coil has a 6inch by 29inch winding on the secondary and a Synchronous spark gap (200bps) but I cant seem to get a decent spark off it I have an MMC of 44.0nF @20kv at the moment 

Question by GordieO1    |  last reply

What sail is best for this raft?

I'm been thinking about building myself a raft. the tricky part is that the raft shuld have a sail. I have made a drawing of the raft using Google SketchUp. what is not shown in the drawing are some barrels and ballast. the raft shall be 23 feet long and 16 feet wide and have a small house on it 8.2 feet long and 13 feet wide. its this big becouse we are four who are going to use it. Now, the question. how should I build the sail? i added the drawing so you can take a look if you like. sorry about the grammar and/or spelling

Topic by Ungerbla    |  last reply