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INTRO.

I had to do this project for many of my young friends who are interested in LED’s but do not know how to go about it.

I also had the same problem but was fortunate enough to get HELP from my friends at www.Instructables.com.

This is not about any calculation or study but a set of proven rules to follow and get results,

which anybody can do if he has the mind to.

Here I have shown you many types of power supply which can be used to glow a LED.

I have also shown here how different types LED's can be made to glow and use it in you project.

Step 1: KNOW YOUR LED

A 15 mm LED has two legs, the long one is the Positive and the short one is the Negative.

It consumes 15 milli Ampere of current and can glow on 3 Volts DC Current, or a 3 volt battery.

LED’s are Diodes and the current can only pass through the POSITIVE side.

Always remember to maintain the POLARITY of the LED, that is (plus to plus) and (minus to minus) otherwise it will not work.

LED is a one way street. Now you know how to connect an LED in your circuit.

Sir i have 10w 6 led i want to run in car please suggest me 12 volt battery
<p>What is the specifications of the 10 watt LED's?</p>
Specifications:Item Type:LED Light (10 Watt) 8000k <br>Intensity: Typical 800~900 Lumen<br>Voltage: 9 to 12 Volt <br>Forward Current:1000mA max.<br>Beam Angle(&deg;):120&deg;<br>Average Life (hrs):Greater than 50000 HRS when used with proper heat sink on these<br>Color:White<br>Color Temperature:Cool White(6700-8000K)<br>Led Bulb Type:Spotlight Bulb
<p>10 watt LED, You can run it on 12 volts car battery</p>
S
Sir i have 10w 6 led i want to run in car please suggest me 12 volt 70A battery<br>Specifications:Item Type:LED Light (10 Watt) 8000k <br>Intensity: Typical 800~900 Lumen<br>Voltage: 9 to 12 Volt <br>Forward Current:1000mA max.<br>Beam Angle(&deg;):120&deg;<br>Average Life (hrs):Greater than 50000 HRS when used with proper heat sink on these<br>Color:White<br>Color Temperature:Cool White(6700-8000K)<br>Led Bulb Type:Spotlight Bulb
<p>10 watt LED consumes 1 Amp current. 6x1=6 amps. Your car battery will be dead in one hour.</p>
Any another way. Just use flash light
Hello.am planning to make an aquarium lighting using 6 10 watt square led for flood light. Also I will use a 450 watt pc power supply. How do I proceed with the wiring?
This
<p>And how about using h4 head car lamps to iluminate some specific palces of the house? ...My desk for example.</p>
<p>OK</p>
1 watt = how much volt ?
<p>3.5volts DC......</p>
1 watt =3.5 volt. Is that right sir...!!!
<p>1 watt LED runs on 3.5volts DC</p>
<p>does this actually work for powering LEDs on AC mains? : http://www.instructables.com/file/FIVRUBHH8TTP6SY </p>
<p>Yes</p>
1watt = how much volt
<p>Sir good day where can i place my capacitor?</p><p>this circuit is from</p>LED on AC Mains<p>by <a href="http://www.instructables.com/member/pandyaketan/" rel="nofollow">pandyaketan</a></p><p>1N4007 anode to negative of the LED(5mm) and a resistor(22kilo ohms-2 watts) connected to the positive of the LED</p><p>here is his circuit</p><p>Thank you and GOD bless!</p>
<p>Sir good day where can i place my capacitor? </p><p>this circuit is from </p>LED on AC Mains<p>by <a href="http://www.instructables.com/member/pandyaketan/" rel="nofollow">pandyaketan</a></p><p>1N4007 anode to negative of the LED(5mm) and a resistor(22kilo ohms-2 watts)</p>
<p>Dear sir, I have ten 9 to 12V 1W sad led and I need connect them to 12V 40 ah battery. We need connect a resistor to circuit or not. Please advice me</p>
<p>Resistors is a must, see diagrame.....</p>
<p>Resistors is a must, see diagrame.....</p>
Sir i have 10w 6 led i want to run in car please suggest me
<p>Sir, how to connect 1 watt led on 220 volt ac.</p>
<p>You have to use a Transformer, SEE my </p><p><a href="http://www.instructables.com/id/24-Watt-LED-Lamp/" rel="nofollow">24 Watt LED Lamp.</a> and you will get the idea.........</p>
<p>Hello Dipankar,</p><p>I want to make a 100 watt lamp with leds.</p><p>Can I make it like this? (remade your sceme on here)</p><p>See my image</p>
<p>A lot of things has to be taken into consideration such as, working voltage of the LED's, Ampere of the batteries etc...... </p>
<p>Sorry Dipankar, I do not understand your answer (picture) quick well.</p><p>My plan is making a bar like I show in my privious picture (2 rows of 5 leds of 10 watt)</p><p>I ordered these leds to make a 100 watt led bar with a 2200 mAh 3S lipo:</p><p><a href="http://www.ebay.com/itm/131579408867?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT" rel="nofollow">http://www.ebay.com/itm/131579408867?_trksid=p2055...</a></p><p>I am a newbee when it comes to electronics, so I hope this is of any help to you.</p>
<p>I mean to say that --- what is the current consumption (Ampere) of one 10 watt LED. If you know that then you can calculate the power supply.</p><p>For Example ONE 1watt LED consumes 350 mA of current. Got it?</p>
<p>Still a bit puzzled though.</p><p>If i use a 3S lipo with 2200 mAh with 30C continuous discharge, I'm allowed to draw 11.1 volts at 2.2 x 30 = 66 Amps.</p><p>The 10, 10 Amp led bar draws 1.05 x 10 = 10.5 Amps.</p><p>That's way beyond the limit of my lipo.</p><p>Am I right or overlooking something ?</p>
<p>You are right, the battery will not be able to handle the current and will discharge very soon. Try it and see what happens.......</p>
<p>In my previous post i meant to say that the amperage will be far under (beyond) the limmit of the battery, so I think it will do (perhaps for a short time, say 1-2 minutes or so)</p><p>I will report as soon as I have recieved the leds and made my 100 Watt led bar.</p><p>Just gonna make the gamble ;-)</p><p>BTW is the sceme I showed in my previous reply (remake of your 24 watt lamp) oke?</p>
<p>OK give it a try.....and let me know.</p>
<p>I gave it a try and guess what? Bingo.</p><p>This is what i did (see image)</p><p>It pulls 7 amps and 77.6 watts.</p><p>I still have to try it out flying my quadcopter though to see how much it will reduce my flight time.</p>
<h3><br> 10Pcs DC 9-12V 10W White High Power 800-900LM SMD LED Lamp Flood Light Chip</h3><p><br> Color: White</p><p><br> Forward Voltage (VF): DC 9-12V</p><h4><br> Forward current (IF): 1050MA</h4><p><br> Out put Lumens: 800-900LM</p><p><br> Color temperature: White(6000-6500K)</p><p><br> Beam Angel: 140 degrees</p><p><br> Life span: &gt;50,000 hours</p><p><br> Size:</p><p><br> Lens Color:Water clear</p><p><br> Viewing Angle:120&deg;</p><h4>ONE 10watt LED consumes 1050MA. So it means your battery is not suited for 10, 10watt LED.</h4>
<p>This is my first led project. I have a 30w led I want to power with a 12v 200w power supply that I have but can buy a different power can supply if need be. Ideally I would like to have a dimmer on it. </p><p>I want to mount the led on something that is easy to handle similar to a flashlight if possible . any advice is greatly appreciated. </p>
<p>Use this circuit and its power supply.......</p>
<p>Use three rows of LED = 30 LED's of this circuit.............</p>
<p>I'm planning to make a desk lamp using a dimmable A19 7w LED. A couple questions: </p><p>1. What kind of dimmer/potentiometer can I use?</p><p>2. Can I simply plug the A19 bulb socket/base into a 110V wall outlet, or is there something special (e.g., power supply) needed?</p><p>3. Is there a newb-friendly resource for learning how to do these relatively simple electronics projects? </p>
To answer your question first I need to know the specification of the A19-7Watt LED.
<p>Thanks! The A19 is a standard household bulb size, and from what I was able to research, it looks like it can indeed be used in a base that plugs directly into a 110v wall outlet. For the dimmer, I need to use a UL-listed dimmer for similar lamps--which I can source from Amazon.</p><p>For other electronics projects, are there sites you recommend for getting my feet wet?</p>
I want to build led pannel for jobsite cause I got a bunch of 3mm white led. i was looking for 100 led by pannel. Is it possible with 110v or there is too much led?
You can use the light as a separate unit, not attached to the jigsaw....
<p>I have a Jig-Saw that would like to mount 2 LED's to the front of so I can see what I'm doing. What resistor/diode combination(for wall AC) will I need to accomplish this and what is the formula for figuring it out? </p><p>Thanks for any insight. </p>
Instead of 2 you can use more LED's with this circuit......
More is usually better, but in this case there is no room for all of them. I tried a 1/4 watt resistor (somewhere around 27k) with the two LED's opposite of each other and had an output voltage of about 3.2v and the resistor got pretty hot.. The light wasn't as bright as I had hoped, so I had a 3-led strip (the kind on sticky tape, 12vdc) and put a 10k inline with them. It was plenty bright, but I was getting a 70 volt reading. I don't quite understand how this can be, but 70 volts is a little too dangerous to be plumbing to the front of a tool where a person might cut the wire and short it out on whatever and themselves.
Sir in my project I used 25leds which work in 230v by using 4 1n4007 ,1 22ohms 0.5w, 1 1M 0.5w, 1 0.22mfd 400v and all glows but after some time some led are not working and how to overcome it
<p>Use this circuit, </p>

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Bio: Now I am a retired person, who enjoys life and making small things to pass the time keep myself busy.
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