High Intensity Discharge Bulb Types

A bulb designation consists of a letter(s) to indicate the shape and a number to indicate the approximate major diameter in eighths of an inch. Click on an image below to view a sample product for each bulb style.

ED 17 HID bulb
ED-17
E-17 HID Bulb
E-17
ET 18 HID bulb
ET-18
ET-23.5 HID bulb
ET-23.5
E 25 HID bulb
E-25
BT 28 HID bulb
BT-28
BT 37 HID bulb
BT-37
  BT 56 HID bulb
BT-56
PAR HID bulb
PAR
T2
T-7
HQI Compact metal halide HID bulb
T-15
ED 17 HID bulb
Single Ended
HQI Compact
Metal Halide
70W and 150W
Mogul base metal halide HID bulb
Mogul Base HQI
Metal Halide
250W and 400W
HQI Compact metal halide HID bulb
Double Ended HQI
Compact Metal Halide
70W and 150W
HQI Compact metal halide HID bulb
Double Ended HQI
Compact Metal Halide
250W