Putco 279004 Nite-Lux Fanless 9004 LED Headlight Conversion Kit, 2 Bulbs New, advanced LED headlight replacement kit using Cree LEDs with 6500K color temperature Miniaturized lamp, tower and ballast packed with a constant current CPU and anti-interference equipment. IP68 shock proof Putco exclusive 100 percent copper weave cloth heat-sink eliminates the need for noisy, failure prone fans 360 degree light output, 2000 lumens each Replaces bulb type 9004 Nite-Lux LED kits operate best when paired with Putco Anti-Flicker Harnesses to ensure smooth power delivery and consistent light output