1.What’s your shipping method ?
UPS, DHL, Fedex, TNT or Shipping by Air or by sea
2.How long do LEDs last ?
LEDs are rated by manufacturers to operate under normal conditions or 50000 hours of continuous use. As LEDs get older, they tend to dim and fade but aren’t susceptible to blinking like incandescent.
3.Could i tell you what’s LED driver ?
An electronic circuit that converts input power into a current source -a source in which current ramains constant despite fluctuations in voltage fluctuations ,overvoltages, and voltage spikes.