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Take a look at our handy guide to the different types of HID High Intensity Discharge HID bulb shapes and base types. Click on any of the illustrations to view all of the bulbs of that type or shape that are offered on Topbulb.com. If you don't see the bulb you're looking for in the list, give us a call at 800.867.2852. We'd be happy to help you locate the correct light bulb.

HID High Intensity Discharge HID Bulb Bases and Shapes Visual Guide Medium Med. E26 High Intensity Discharge HID Base Type Mogul Extended Eyelet Mogul Base EX39 Excl. Mog. High Intensity Discharge HID Base Type Position Oriented Mogul base POMB High Intensity Discharge HID Base Type Medium Skirted Med. Skt. E26/50X39 High Intensity Discharge HID Base Type Recessed Single Contact RX7s High Intensity Discharge HID Base Type High Intensity Discharge HID Base Type High Intensity Discharge HID Base Type High Intensity Discharge HID Base Type BD-17 High Intensity Discharge HID Bulb Shape BT-37 High Intensity Discharge HID Bulb Shape BT-56 High Intensity Discharge HID Bulb Shape E-25 High Intensity Discharge HID Bulb Shape ED-17 High Intensity Discharge HID Bulb Shape ED-18 High Intensity Discharge HID Bulb Shape ED-23 1/2 High Intensity Discharge HID Bulb Shape ED-28 High Intensity Discharge HID Bulb Shape ED-37 High Intensity Discharge HID Bulb Shape T-4 High Intensity Discharge HID Bulb Shape T-6 High Intensity Discharge HID Bulb Shape TD-6 High Intensity Discharge HID Bulb Shape TD-7 High Intensity Discharge HID Bulb Shape T-10 High Intensity Discharge HID Bulb Shape T-14 High Intensity Discharge HID Bulb Shape T-17 High Intensity Discharge HID Bulb Shape T-21 High Intensity Discharge HID Bulb Shape TD Special High Intensity Discharge HID Bulb Shape