power supply :
Always light day battery
Strobe dry battery
Always light USB
Strobe USB
Power plug
Dry battery with remote
USB with remote
waterproof battery box with remote

Long and leds:
1.5m 10leds
3m 20leds
6m 40leds
10m 100leds

Free samples is avaliable
500pcs--white /normal/pp bag package
2000pcs--customized color box