400 Watt, 120-277& 480 Volt Metal Halide Ballast
SKU: M400ML5AC4M500K | Ordering
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Number of Lamps
The percentage of a lamp's rated lumen output that can be expected when operated on a specific commercially available ballast. For example, a ballast with a ballast factor of 0.93 will result in the lamps emitting 93% of their rated lumen output. A ballast with a lower ballast factor results in less light output and also generally consumes less power.
For ballasts and fixtures, height is the measurement of total vertical distance from the top of the product to the bottom expressed in inches.
For fixtures and ballasts, width is the measurement of the total depth of the product in inches.
Also referred to as "Maximum Overall Length" (MOL). For light bulbs, it measures the length of a light bulb, from the top of the bulb to the bottom of the base or pins and is typically expressed in inches. For light fixtures and ballasts, it applies to the total horizontal length of the item.
Lamps by Wattage
Ballast Lamp Type
Ballast Lamp Type
The type of bulb the ballast can fire.
Universal HID MULTI-5 Core & Coil Ballast Kit* Ignites One 400 Watt Metal Halide (ANSI Code M59) or One 400 Watt Mercury Vapor (ANSI Code H33) Lamp of 120/208/240/277/480 Voltage. LAMP NOT INCLUDED.
What is the life expectancy of the ballast, is it the same as the light?
Asked on 11/27/2012 by Tom
A typically life expectancy on an HID ballast is 10+ years. However, the life of a ballast can be based on a number of factors including # of On/Off cycles, Length of On time, Heat, Humidity/Dampness/Corrosion, Air quality (i.e. dust/dirt/salinity) or vibration.
Answered on 12/3/2012 by Anonymous
Is it possible to remote mount the ballast 50ft away from the bulb?
Asked on 4/18/2012 by Billy dodds from Houston Tx
This particular ballast can be remotely mounted at various distances depending on the grade of wire used with the ballast (12GA = 132', 14GA = 83', 16GA = 52' and 18GA = 33'). It may be best to choose the 14GA wire in this case to make sure that the ballast will work from 50' away.
Answered on 4/19/2012 by Product Support from Bulbs.com