Protected Metal Halide Light Bulbs
The Plusrite MP400/BT37/BU/4K is a 400W protected metal halide lamp designed for high-output commercial and industrial lighting in both open and enclosed fixtures. Burning base-up, this BT37 bulb produces a crisp 4200K cool white light and is rated for 10,000 hours of average life, making it a long-lasting solution for warehouses, retail spaces, sports facilities, and high-bay industrial environments. Its M59/O ANSI ballast compatibility and E39 Mogul base provide broad fixture compatibility, while the protected construction ensures safe operation in demanding conditions. Cross-referenced across leading brands for easy sourcing and replacement.
Specifications
Wattage: 400W
Bulb Shape: BT37
Lamp Base Type: MOG (EX39)
Finish: Clear
ANSI Code: M59/O
Color Temperature (K): 4200K
Average Life: 10,000 hrs
Burning Position: Base Up
MOL: 8.31 in
Diameter: 3.50 in
Manufacturer: Plusrite
Cross Reference: DAMAR 25311A MP400W/BU/UVP/4K, OSRAM SYLVANIA 64705 MP400/BU-ONLY, PHILIPS 133322 Switch Start MH Protected 400W/640 EX39 ED37 CL, PLUSRITE 1042 MP400/ED37/BU/4K, SATCO 4388 MP400/BU-ONLY
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We cannot sell or ship Green Energy Lighting brand Mercury containing lamps in the States of Massachusetts,Maine and Vermont. |
| Free Shipping Offers |
| When offered, "Free Shipping" method will be Ground Shipping by the carrier of our choosing. If one or more items are unable to be shipped the "Free Shipping" offer may be void. This determination will be at our discretion and you will be notified. There are no rain checks or deferrals. Some items are exempt from the "Free Shipping" offer; these include HID Ballasts, BT56 size Metal Halide bulbs, 4ft linear fluorescent tubes, 4ft LED linear tubes, 4ft LED shop lights and all Ultragrow HID and T5 fixtures. |

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