Keystone DirectDrive HID LED lamps offer a durable upgrade for existing HID fixtures to the latest in LED technology. Simply bypass the existing ballast by cutting the wires and connecting the 120-277V line voltage directly to the sockets. No ballast or external driver is required.
This KT-LED100HID-EX39-850-D 100 watt mogul base LED can directly replace a 400 watt metal halide lamp.