The 18W HyLite LED Omni-Cob is a 75W HID Replacement lamp. It is an ideal solution for bollards, wall packs, and other applications with small HID lamps. The 18W Omni-Cob lamps does not require a ballast and works on direct line voltage. With an Ultra-high efficacy of 140 lumens per watt, the 18W HyLite LED Omni-Cob saves up to 80 percent in energy. Suitable for Fully-enclosed fixtures. 5000K CCT.