Base and cap examples
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| BC - Bayonet Cap (22mm) | ES - Edison Screw (27mm) | SBC - Small Bayonet Cap (15mm) |
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| SES - Small Edison Screw (14mm) | GU10 - (10mm) | GES - Giant Edison Screw (40mm) |
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| 2G10 - (90mm) | 2G11 - (44mm) | G4 |
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| G6.35 | G9 | G23 - (32mm) |
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| G24D-1 - (35mm) | P14.5s |