Lightsaber Flashlight

Lightsaber Flashlight A powerful flashlight in the shape of a lightsaber BOM: M10 screw washer and nut - used as a passive LED cooler LED Rocket switch Li-ion 18650 Module of usb li-ion charger Step-up converter Some wires Apply thermal paste (I used arctic MX-4) between the LED and the screw heads. Use epoxy glue to attach the LED to the screw head - apply the glue around the edges, not underneath the LED. Caution: The LED is hot, do not touch it with your fingers. Always keep the emitter on to prevent burns.