» Flashlights and flashlights »Powerful 100 Watt Flashlight

Powerful 100 Watt Flashlight


This lamp can work up to 2.5 hours at 100% power. It weighs about 2 kilograms. I managed to collect this lamp for 2500 rubles. The most expensive is the LED and batteries.

I bought all the components in China, so I’ll leave a link next to each component.

For assembly we need:

- LED 100 vvat
- 8 18650 batteries (in this case, a capacity of 2600 mAh)
- Charging and protection board YH11047A
- Voltage converter board 12-32v
- Cooler 12v
- Radiator
- Lock button
- Button without fixing
- Charger 16.8v. 2A
- Lens and reflector
- Thermal grease
- The wire
- Digital voltmeter
















1. We drill in the radiator 4 holes for the LED. We apply a thin layer of thermal grease and fasten the LED. I used thermal paste-glue, so it will be stronger. We solder the wires to the LED.





2. Putting the batteries together. For the connection, I used superglue and soda. After assembling in a heap, we connect 4 assemblies in series, in each 2 batteries in parallel. Such batteries cannot be soldered, so I used conductive glue. I glued the wires to the batteries and on top a drop of superglue with soda for strength. As a result, you should get an assembly at 16.8v and a capacity of 5200 mAh





3. We solder all the boards, LED, cooler and batteries. Do not forget to solder the voltmeter through another button to monitor the voltage of the batteries.
Powerful 100 Watt Flashlight






The scheme by which you need to solder. Do everything carefully! 1 error and batteries may short-circuit!


4. I printed the case on a 3D printer.
I will leave a link to 3D model cases with a cover.

Inside the case, I fastened everything with clamps and super glue with soda.





Total:
I turn on the lamp in the courtyard at night.


It shines about 30-45 meters.

I advise you not to save on a radiator and a cooler. It is very hot, but you need to keep the temperature below 60 degrees. I saved and you can’t shine for longer than 20 minutes (in my case). Take a bigger radiator!
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4 commentary
Why is there 100 w such but 70 w and if you put a radiator from the motherboard of a stationary computer on the boost 28.5 v then you do not need a cooler. Battery 12.6 v 3 pcs 18650. Operating time 3.5 hours. Lens from the headlights of the VAZ 2110. Half a year of operation no complaints.
The lamp can work up to 2.5 hours at 100% power.
But is it possible that the battery is discharged in less than an hour?
1. At the place of installation of the LED it was necessary to clean the radiator from the paint.
2. Heat-conducting paste as an oil is not smeared, the layer should be thin.
3. Case on a 3D printer? Ruined materials and the appearance as if with a knife they cut from a piece of foam.
4. A radiator for 10-15 watts with a frail fan that drives hot air in a confined space ... ((
Author
The yard is for example. I take it fishing with the night.
What is the meaning of a flashlight weighing 2 kg powered by batteries, if they illuminate the yard? If you can use a simple Chinese flashlight weighing 20 grams powered by one AA element and cost 40 rubles. Or is it homemade for the sake of homemade? LED from China, batteries from China, but everything here is from China. Even a 3D printer from there. Get from a heavenly pile of junk, connect with each other and get homemade?
In my understanding of homemade work, this is when there is a bunch of boards, but it turned out, say, a table or chair. Or there is a circuit and a bunch of radio components, but it turns out the receiver or power supply.

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