5pcs 5MM LED Flashlight Convenient Light Kit Simple LED Boost Drive DIY Electronic Kit

Feature: Shell size: 55 x 35 x 15mm PCB board size: 5 x 2 x 1mm Operating voltage: 1.5V (AAA battery) Kit weight: 17 grams Note: This is a DIY kit, you need to assemble it. Package includes: 5 x Plastic housing 5 x PCB board 5 x 8*8 self-locking switch 5 x 7mm self-locking switch cap 5 x Single wire 5CM 5 x 8550 transistor 5 x 8050 triode 5 x 5MM Straw Hat LED 5 x 330UH inductor 5 x 102 ceramic capacitor 5 x 510 ohm resistor 5 x 20K resistance 5 x Battery positive piece 5 x Battery negative piece