Monster 7,500 Lumens 100W LED Flashlight for under $10

in #dtube • 5 years ago

Help support Julian's LED videos on Patreon: https://www.patreon.com/julian256

I discovered that due to a lucky co-incidence of voltage and internal resistance, a 100W LED can be connected directly across the terminals of two 18V Nickel Cadmium power tool batteries. And that means you can build a 100 Watt (7,500 Lumens) flashlight for less than $10 (not including batteries).

Note: Don't try this with other battery types - you'll almost certainly fry the LED!

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5 years ago in #dtube by
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