Metal Halide Replacement Chart:
Sylvania M400/U/ED37
Satco MH400/ED37/U/4K
Venture MH 400W/U
Eiko MH400/U
Metal Halide bulbs are a member of the High Intensity Discharge (HID) family of lighting products. Metal Halide bulbs are among the most energy efficient sources of white light available today. These 400 watt metal halide bulbs feature special chemical compounds known as Halides that produce light in most regions of the spectrum.
Philips MH400/U (27449) Metal Halide light bulbs offer high efficacy, excellent color rendition, long service life and good lumen maintenance. Because of their numerous advantages, metal halide HID bulbs are used extensively in outdoor applications and in commercial interiors.
Philips 400W Metal Halide, Universal Burn Lamps are intended primarily for use in enclosed luminaires. Initial Lumens 39,000, Mean Lumens 23,350, rated average life 20,000 Hours when burned in the Vertical (V) position, ANSI Type M59/E. These Philips High Intensity Discharge Metal Halide HID light bulbs employ a Mogul Base and are designed with an ED37 bulb.