Huge Lens Flashlight Experiment XHP70

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About: There is no greater harm than that of time wasted - Michelangelo Buonarroti

In this instructable I will show you one of my experiments with huge lens and powerful led. I hope you will like it :)

It is the second flashlight that I build, this second flashlight is a throw flashlight that can light the clouds. I tested it at 1,5 miles and the light was bright at this distance. The flashlight is build with powerful xhp 70 cree led powered by led regulator circuit and huge lens.

In the future I will test a monster 500w led and the huge lens that you can see in the last picture

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Step 1: Materials

Lens - Optical Glass Plano Convex Condenser Lens

PVC pipe to fit the lens

PC processor cooler

LED

LED driver circuit

On/Off switch

12v Battery

Silicone

Thermal paste

Step 2: First

Start by cuting the PVC pipe at a distance to fit all the pieces, I cut mine about 40cm long.

Make holes in it for ventilation

Use clear silicone to glue the lens on the pvc pipe fitting.

Add a layer of plastic primer and few layers of paint for design :)

Step 3: Electronics

Make holes in the middle of the cooler plate and tap and die set to make thread.

Add thermal paste and attach the led with screws

Cut a round piece of wood and make a hole in the middle of it.

This piece must hold the led in the middle of pvc pipe.

Put it inside the pipe and secure it with screws.

Make a hole and attach the on/off switch.

I used xhp70 led, led driver and 12 v li-ion battery with BMS

The cooler fan need 12v (no need for voltage converter)

In the pictures you can see many wires and on/off switches because I wanted to use 5 led types to experiment with.

Step 4: Done

I hope this will help you :)

Sorry for my english!

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    18 Discussions

    None
    JohnC430

    9 months ago

    can you please post a link for the cooler? Thanks

    None
    ImpactDIYBardP

    Reply 9 months ago

    . That is a good idea, it may work. I don't think that cooling is needed.

    None
    KryptoTSD

    9 months ago

    Seeing as the lens is at the top of the list of components, and henceforth the most important, what diameter is it, and how thick is it in the very centre? This is an important detail that is missing from your instructable... Also, where did you get the lens and how much did it cost?

    1 reply
    None
    ImpactDIYKryptoTSD

    Reply 9 months ago

    Hello, sorry to be late, the 3 lenses are Optical Glass Plano Convex
    Condenser Lens. There are three lenses size that I used. The first one
    is 13 cm diameter and I recovered it from a Krokus photo enlarger.
    Second one is 20 cm diameter. The big one is 32 cm diameter. The second
    and the third are recovered from old, broken theater reflectors. If you have more questions please ask, I am glad to answer.

    None
    ImpactDIYLeigh Havard

    Answer 9 months ago

    Hello, sorry to be late, the 3 lenses are Optical Glass Plano Convex
    Condenser Lens. There are three lenses size that I used. The first one
    is 13 cm diameter and I recovered it from a Krokus photo enlarger.
    Second one is 20 cm diameter. The big one is 32 cm diameter. The second
    and the third are recovered from old, broken theater reflectors.

    None
    FrozenInCND

    9 months ago

    The most important part of this build is the Lens, could you pleas tell us about it ( where you got it diameter......etc).

    1 reply
    None
    ImpactDIYFrozenInCND

    Reply 9 months ago

    Hello, sorry to be late, the 3 lenses are Optical Glass Plano Convex
    Condenser Lens. There are three lenses size that I used. The first one
    is 13 cm diameter and I recovered it from a Krokus photo enlarger.
    Second one is 20 cm diameter. The big one is 32 cm diameter. The second
    and the third are recovered from old, broken theater reflectors.

    None
    falcondob

    Question 9 months ago

    What was the diameter of the lens you used? (in mm please) Thanks!

    1 answer
    None
    ImpactDIYfalcondob

    Answer 9 months ago

    Hello, sorry to be late, the 3 lenses are Optical Glass Plano Convex Condenser Lens. There are three lenses size that I used. The first one is 13 cm diameter and I recovered it from a Krokus photo enlarger. Second one is 20 cm diameter. The big one is 32 cm diameter. The second and the third are recovered from old, broken theater reflectors.

    None
    JurajP1

    9 months ago

    you wrote XHP70, but on video is more powerful led...

    1 reply
    None
    ImpactDIYJurajP1

    Reply 9 months ago

    Hello, there are 2 flashlights, the one in the first video has xhp70 ked, the one in the second video has 100w led. I also made one instructable for it , you can find it on my profile.

    None
    waynoedm

    9 months ago

    Do you have sources for your materials? Primarily lenses and LED lightsource. Thanks. :)

    1 reply
    None
    ImpactDIYwaynoedm

    Reply 9 months ago

    Hello :), led model is XHP70, you can find led and led driver on ebay, aliexpress etc. The lens are from a krokus photo enlarger (small one), and from theater reflectors (middle and big one)

    None
    formender

    9 months ago

    Das nenn ich mal ne "Taschenlampe"... :) Klasse Projekt. Bin gespannt, was als nächstes kommt. Meine Stimme haben sie. Frohes Schaffen und Gruß aus Hessen.