DIY 10W LED Flashlight

All you need is

• a heatsink
• 10W high power Led
• 5W 1,5 Ohm resistor
• LM 350 regulator
• thermal compound
• wires
• 3s Lipo
• a lipo connector
• on/off switch
• soldering tin
• soldering iron
• multitool

• The LM350 regulator gives constant 1.2 volts between ADJ and Vout. Connect the two outputs with a resistor.
• 1.2 (constant voltage of regulator) divided by 0,9 (900mA power consumption of LED) equals 1,33. The closest resistor value I have found is 1,5 Ohm, the output will be 800mA

• red wire goes to + of LED
• blue wire goes to + of the battery through the on/off switch
• green wire goes to - of the battery through the on/off switch

• use thermal compound!

• Build a frame, you can use for example wood
• Connect the lipo
• Turn on the switch :-)