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Sylvania MP400/BU-ONLY - 400W Metal Halide - Open Fixture - Base Up - EX39 Mogul

Clear Finish • 10,000 Hours • BT37 • M59/O

22.95 $ Topbulb

Order Code: SY64705

Price: $22.95

Ships in 5-10 Days

This item usually ships in 5-10 business days after order is placed.

The Sylvania Metelarc Pro-Tech metal halide lamps fill the need for a safe light source for applications where there is no protective lens on the metal halide fixture. The use of open fixtures means more light output over life and lower maintenance costs because there are no lenses to gather dirt and dust.

This lamp design includes a shroud around the arc tube and enhances safety in both open or enclosed fixtures. In addition, Metalarc Pro-Tech lamps have a reduction in UV output compared to standard metal halide lamps.

This 400 watt, clear finish lamp has an EX39 exclusionary mogul base and must be operated in the base up position.

See the document below for complete specifications.


  • Ambient Lighting for Industrial and Retail
  • Flood Lighting
  • Lobbies
  • Atriums
  • Malls
  • Parking Lots
  • Security Lighting


ANSI Code M59
Watts 400
Lumens Per Watt 100
Lamp Shape BT37
Base EX39 (Excl. Mogul)
Bulb Diameter (In.) 4.6
Average Life (hours) 20000
Color Temperature 3600
Color Rendering Index 65
Initial Lumens 40000
Mean Lumens 26000
Max Overall Length (In.) 11.50
Bulb Finish Clear
Lamp Type Metal Halide
Lamp Sub-Type Probe Start
Operating Burn Position Base Up
Luminaire Requirement Open or Enclosed
Available in Case Of 6

Topbulb Order Code SY64705
Brand Sylvania
Manufacturer's Description MP400/BU-ONLY Metalarc Pro-Tech
MPN 64705
UPC 046135647055