Version 2 here: 100 Watt LED Version 2
So I saw a Youtube video of a guy that made a flashlight out of one these 100W LED's you can get on Ebay for about 5 or 10 bucks...
These things fit perfectly onto a computer CPU heatsink with fan and it's the perfect cooling for it.
Super flood turns night into day. I think these things are made for parking lots, etc...
The Youtube build I saw was awesome, but there was one thing that I didn't like about his...
He used a round pack of Li-Ion's that definitely blocked the air flow through the tube, which would not be good cooling, and it would also hurt the fan...
So...
Since I already had a CPU heatsink with 12 volt fan, plus various other supplies laying around, I set out to make myself something similar but with a LiPo pack which would lay flat inside and allow plenty of air flow.
Here's a short video demonstration showing air flow through the tube:
Lipo pack:
My build is designed around this battery which I already have a nice balance charger for my other Lipo cells I have for my RC heli's...
All parts can be picked up for very cheap! (except the battery - that's the only real expense. I paid $60 for the battery)
I molded some easy to make battery mounting plates with some of that 2 part marine putty...
Details:
That large boost driver was only 13 bucks. It has Voltage adjustment as well as Amperage. So you can dial your LED in perfectly.
The LED needs 36 Volts and 3 Amps. My Lipo cell draws about 7.8 Amps at full charge in order to boost to 36 Volts at 3 Amps...
The smaller driver is a buck driver for the 12 Volt fan. It only cost about 5 bucks. The fan only draws about 380mA.
I have a voltage monitor on there as well but that only draws about 7mA's.
Battery voltage monitor color code:
Bright blue - Full charge
Cyan - Very good
Green - Good
Yellow/Amber - Low warning
Red - Batteries low
My total current draw for everything is 8.2 Amps at full charge.
Balance charge plug out the back, and charge plug out the front...
Handle mounted perfectly balanced... (total weight - 5.4 lbs.)
Night turns into day!
Got a second lens so I could experiment with sanding the back side...
Wet sanding did not work too well so I put a very light etch with my sand blaster:
The yellow ring is now gone... (Spot on the wall at 4' distance)
Stock lens:
Etched lens:
Click here to see my list of projects and tutorials!
So I saw a Youtube video of a guy that made a flashlight out of one these 100W LED's you can get on Ebay for about 5 or 10 bucks...
These things fit perfectly onto a computer CPU heatsink with fan and it's the perfect cooling for it.
Super flood turns night into day. I think these things are made for parking lots, etc...
The Youtube build I saw was awesome, but there was one thing that I didn't like about his...
He used a round pack of Li-Ion's that definitely blocked the air flow through the tube, which would not be good cooling, and it would also hurt the fan...
So...
Since I already had a CPU heatsink with 12 volt fan, plus various other supplies laying around, I set out to make myself something similar but with a LiPo pack which would lay flat inside and allow plenty of air flow.
Here's a short video demonstration showing air flow through the tube:
Lipo pack:
My build is designed around this battery which I already have a nice balance charger for my other Lipo cells I have for my RC heli's...
All parts can be picked up for very cheap! (except the battery - that's the only real expense. I paid $60 for the battery)
I molded some easy to make battery mounting plates with some of that 2 part marine putty...
Details:
That large boost driver was only 13 bucks. It has Voltage adjustment as well as Amperage. So you can dial your LED in perfectly.
The LED needs 36 Volts and 3 Amps. My Lipo cell draws about 7.8 Amps at full charge in order to boost to 36 Volts at 3 Amps...
The smaller driver is a buck driver for the 12 Volt fan. It only cost about 5 bucks. The fan only draws about 380mA.
I have a voltage monitor on there as well but that only draws about 7mA's.
Battery voltage monitor color code:
Bright blue - Full charge
Cyan - Very good
Green - Good
Yellow/Amber - Low warning
Red - Batteries low
My total current draw for everything is 8.2 Amps at full charge.
Balance charge plug out the back, and charge plug out the front...
Handle mounted perfectly balanced...
(total weight - 5.4 lbs.)
Night turns into day!
Got a second lens so I could experiment with sanding the back side...
Wet sanding did not work too well so I put a very light etch with my sand blaster:
The yellow ring is now gone... (Spot on the wall at 4' distance)
Stock lens:
Etched lens:
Click here to see my list of projects and tutorials!
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