I live in Ukraine, and because russia attacks our power system, sometimes we have problem with electricity. So, I decided to make a battery powered floodlight in case of emergency.
List of components:
- 10 W Cree XML2 U2-1A LED
- three li-ion batteries, capacity about 2600 mAh
- LED driver Nanjing 105D 2.8 A
- Battery indicator
- USB Type-C charger, 5 Volts, 3 Amp
My friend gave me an LED floodlight to fix, but the LED and the driver were dead, so it is much cheaper to buy a new one. I used it for my DIY floodlight.
Parameters of the floodlight:
I bought a new LED to replace the broken one.
The LED driver requires cooling, so I mounted it to the metallic case of the floodlight. I have drawn a case for the batteries and printed it on the FDM printer, and everything fits perfectly.
(I use TP4056 charger module for now, 1 A max, but I have ordered more powerful charger, it's on the way.)
The last step - charge and test battery life.
The mounting brackets where added to make it easier to place it everywhere
The power of 10 W is enough for home using. Also, the LED driver has few modes: 4 brightness levels, sos mode, stroboscope.
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