The Optimum Series 4 LED Headlight Bulbs are the brightest LED headlight and fog light bulbs on the market. They have a more precise beam pattern and hot spot than any others. Due to advanced engineering, they use less wattage, but produce significantly more usable light than any other LED headlight bulbs. You won't find a higher quality bulb, that lasts longer, at a better price, with a better warranty, so what are you waiting for? Buy them, and give us the chance to amaze you!