... to 50,000hours.l Constant voltage and driver, ensure low led luminous decay.l 6063 aluminum material crust good for heat dissipation ... More than 85% high efficiency, low electricity consumption.l COB luminous source make the luminance very uniform Specifications Dimension(mm) Φ94 ... connect AC 85-265V directly, Without ballast, and put the led spot light onPackage &Trade TermQty/CTN: 250pcs, CTN size: ...