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 Lumens maintenance. These 100-Watt protected pulse start metal halide bulbs have a bright 8500 Lumens 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 M90/O. Confirm ANSI Code to help determine the correct bulb for your fixture and the ballast it uses. Bulb measurements are 2.13 in. Dia, 5.26 in. tall.