BLE-LED-150, VIVID UV-A-LED Replacement Bulb. Convert your mercury vapor HID lamp to modern LED technology. Rated life is 10x longer (50,000 hours based on average use) than a mercury vapor HID bulb (5,000 hours based on average use). Instant-On Operation. Over 50% cooler than HID. Less environmental waste with fewer bulbs and energy efficient. Comes with patented bulb saver that keeps bulb upright in housing and maintains alignment through usage, increasing longevity. Includes bulb extender for BIB-150P lamps.