Extreme durability, exceptional performance, and WARN reliability; these are the ultimate 4" HID lamps. At a mere 18 ounces they'll easily mount on bumpers, light bars, or handlebars. Low-amp-draw 40W HID lamps produce an impressive 3,225 lumens, intensely white 5,550k color, and a wide 22 degree pattern. They stand up to the harshest environments, thanks to stainless steel hardware, forged anodized aluminum housings, impact-resistant glass, and silicone seals. Installation is easy thanks to a compact shape, integrated ballasts, and through-post wiring.