Sunlite high intensity discharge lamps are perfect for outdoor lighting and commercial interiors. Energy efficient HID lamps offer exceptional efficacy, great color rendition, have a long service life and excellent lumen maintenance. These 150 watt protected pulse start metal halide bulbs have a bright 13300 lumen output. They are medium base (E26), ED17 bulbs with an average life span of 15,000 hours. Use in street lights, parking lot fixtures, perimeter lighting, wall packs, and other commercial and industrial lighting applications. ANSI Code M102/O. Confirm ANSI Code to help determine the correct bulb for your fixture and the ballast it uses. Bulb measurements are 2.1 inches in diameter, 5.3 inches tall.