175 Watt BT28 HID Mercury Vapor Light Bulb

175 Watt BT28 HID Mercury Vapor Light Bulb

White E39 (Mogul) Base, Box


No.3740500
Domestic CodeHF175XR/H39
Lamp ShapeBT28
Energy Used (Watts)175
Lamp BaseE39 (Mogul)
Light Appearance (Kelvin)4000
CRI41
Life (Hours)24000
Brightness (Lumens)8900
Lumens (Mean)7120
Max. Overall Length (MOL)8.31
Energy Star ApprovedN
ULN
CULN
CSAN
Contains MercuryY
Circle E CompliantN
Light Center Length5.31
ANSI CodeH39
LensedN
Pulse StartN
Life (Years)*21.9
Estimated Yearly Energy Cost**21.08


 * Based on 3 hrs./day
** Based on 3 hrs./day $.11/kWh
   Cost depends on rates and use.
High Intensity Discharge (HID) Mercury Vapor light bulbs are efficient and offer long life. These mercury vapor bulbs offer long life up to 24,000 hour average rated. To help you find the right bulb for the right application, see Westinghouse’s full offering of mercury vapor bulbs available in medium or mogul base varieties. These bulbs are designed for applications that require moderate color rendering. They are ideal use in outdoor security, area lighting, general flood lighting and parking lots. These light bulbs contain mercury. Dispose of according to local, state or federal laws.

Product reference number 37405



  • Available in a variety of shapes and wattages
  • Long life up to 24,000 hours average
  • Mercury vapor bulbs are efficient and save on operating costs
  • These bulbs require specific ballasts and starters for correct operation
  • For use in outdoor security, general flood lighting and parking lots
How to Buy

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