T 7" (17.8 cm) in diameter, these HID lights deliver outstanding range and spread, and will blaze a trail of intense white light through the darkest off-road terrain. The Xenon HID bulb is 300% brighter-and lasts 10 times longer-than 55W halogens. Features include tempered clear glass lenses, vaporized aluminum over die-cast aluminum reflectors for outstanding light output, and impact- and corrosion-resistant polymer cases for great weather resistance. The integrated ballast and wireless control switch allow for a straightforward installation.