EGOODBEST 35W Slim HID Xenon Conversion Kit Ballast 9006/HB4 3000K 4300K 5000K 6000K 8000K 10000K 12000K All of our hid products and iso-9001:2000 approved. They are manufactured under the strictest of quality control. Installation is plug-n-play and is simple enough for a first time installer to do in 20-30 minutes. Our kits plug right into your existing headlight assembly and all necessary hardware for installation is included. Upgrade from the standard halogen to the brilliance of hid technology today. What is hid? --hid (high intensity discharge) refers to lighting technology that relies on an electrical charge to ignite xenon gas contained in a sealed bulb. A normal halogen bulb uses a filament which can burn out in as little as 200 hours. Hid bulbs are gas filled capsules that are rated for a lifespan of nearly 4500 hours. Hid bulbs also shine much brighter due to this technology. --unlike halogen bulbs, hid emit a type of light that closely resembles natural daylight and is therefore easier on human eyes. In fact, hid lights are currently used in most sports arenas, stadiums, and train stations worldwide. Do not be fooled by lower end xenon replica bulbs sold at most retail shops. They are no match for the intensity, purity, and efficiency of high intensity discharge headlights. 3000k xenon conversion give you a golden yellow color. Most suitable for fog lights. 4300k xenon conversion give you a bright white color. The light appears fairly white, and has light yellowish hue. Recommend for low lights. 5000k xenon conversion give you a bright white color. The light appears fairly white, and has light yellowish hue. Recommend for low lights. 6000k xenon conversion give you a pure white color and with a very slight and barely noticeable tint of blue and purple. Recommend for high lights.