Putco's Silver-Lux LED headlight bulbs are custom designed with aluminum towers and built with high-power Philips Lumi LEDs with 4000 Lumens of light output on dual filament high beam operation. Shining 6500K white, these upgrades feature a clockable collar, allowing you to adjust the light beam as necessary for your vehicle. Like the Putco Nite-Lux kits, these also feature Putco's exclusive patented 100 percent copper weave cloth heat-sinks. The driver assembly is now smaller and fully enclosed.