1) 12 / 15 / 18 / 21 HB LEDs and customized LED quantity
2) Long lifespan: over 60,000h
3) Low power consumption: each bulb saves power consumption about 70kWh
    per year (as much power as 25W incandescent bulbs working 8hrs per day)
4) Various colors compound with single, double or seven colors changing
5) Cool beam for safe touching
6) Waterproof and dust-proof with strength glass / PC cover
7) Copper base with nickel plated