Keystone DirectDrive LED HID replacement lamps are the ideal way to upgrade existing HID fixtures to the latest in LED technology. Simply bypass the existing ballast by cutting the wires and connecting the 120 to 277 VAC line voltage directly to the sockets. No ballast or external driver is required. These vertical corn cob LED lamps feature a 360 deg beam angle to produce omni-directional light output. Choosing LED replacement bulbs for HID fixtures is an easy way to increase lighting efficiency. Corn cob LED lamps use significantly less wattage to deliver comparable Lumens as conventional metal halide lamps. Keystone's LED HID replacements also provide better color rendering than metal halide lamps.