Light bulbs are identified by the diameter, length, shape, and screw type. This is done in the form of letter followed by a number. A normal household light bulb is on average a 60 watt light bulb. In technical terms it is an A19 type bulb. The A means Arbitrary Shape and the 19 means size in diameter (19/8th inches or 2 3/8th inches). If you need to identify a certain type of light bulb, we have charts for bulb shapes, sizes, screw types, series, and base sizes to help you identify which light bulb you need. See below for different bulb lumens, watts, series, base sizes, screw types, and more.
Light bulb bases E style chart
Light bulb shape chart
Light bulb bases fluorescent style chart
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Fluorescent lights base and type chart
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Bulb Sizes Shapes – A Series Bulbs
Bulb Sizes Shapes – ALR Series Bulbs
Bulb Sizes Shapes – AR Series Bulbs
Bulb Sizes Shapes – B Series Bulbs
Bulb Sizes Shapes – BR Series Bulbs
Bulb Sizes Shapes – BT Series Bulbs
Bulb Sizes Shapes – C-7 F Series Bulbs
Bulb Sizes Shapes – CA Series Bulbs
Bulb Sizes Shapes – E Series Bulbs
Bulb Sizes Shapes – ED Series Bulbs
Bulb Sizes Shapes – F Series Bulbs
Bulb Sizes Shapes – G Series Bulbs
Bulb Sizes Shapes – LINESTRA Series Bulbs
Bulb Sizes Shapes – MR Series Bulbs
Bulb Sizes Shapes – PAR Series Bulbs
Bulb Sizes Shapes – PS 25 PS 35 Series Bulbs
Bulb Sizes Shapes – R Series Bulbs
Bulb Sizes Shapes – RP MB BT Series Bulbs
Bulb Sizes Shapes – S Series Bulbs
Bulb Sizes Shapes – T Double Ended Halogen Series Bulbs
Bulb Sizes Shapes – T Series Bulbs
Terms Reference:
MES – Medium Edison Screw
ACEC – Advisory Committee on Electromagnetic Compatibility (part of IEC)
ES – Edison Screw
IEC – International Electrotechnical Commission (or CEI in French) – Sets standards
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Written by Keith Schneerer
Certified Appliance Tech · Founder, RemoveAndReplace.com
Keith has spent 30+ years repairing machines, starting as a military mechanic and later maintaining food processing equipment before moving into appliance repair. He founded RemoveAndReplace.com to share field-tested repair advice.
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