[Matt] wanted to drive a Yuji LED array. The LED requires 30 V and at 100 watts, it generates a lot of heat. He used a Corsair water cooling system made for a CPU cooler to carry away the heat. The ...

There are flashlights and then there are FLASHLIGHTS and this DIY 72,000 lumen bad boy is definitely the latter type of flashlight. It was made by a guy called Samm Sheperd and it uses eight 100w LED ...

Unimpressed with the flashlights sold at your local outdoors store? Need to be able to spot bears at night from five miles away on your next camping trip? Just do what YouTube hacker Samm Sheperd did ...

Go to the drawer where you keep your flashlight, and pull it out. Look at its puny little bulb. Drop it on the floor. Kick it under the sofa. Fish it back out. Pick it back up. Now throw it in the ...