50W Rectangle LED COB Chips AC Input 220V Built-in Smart Driver IC for DIY Spotlight Projector, White

2 No power needed, connect 220V AC directly, suitable for DIY
3 Must need an aluminum heatsink for cooling. Keep the temperature below 70 degrees is appropriate, the lamp life can be extended.
4 Material: Aluminum High conductivity, not easy to damage, rapid heat dissipation.
5 Lifespan: 10000 hours. Warranty: 2 years