(Pack of 3 bulbs) Watt - 400 * Bulb type - Metal halide * Bulb Shape - ED28 *  Life - 10,000hr * Lumens (initial) - 36,000 * Length - 8.31" * Base - E39 Mogul Screw * Finish - Clear *  CRI - 65 * ANSI Code - M59/E