Incandescent Lamp Information
Incandescent Lamp BasesCodes Used in Incandescent Lamp Descriptions
Comparison Between Incandescent & CFL Lamp Wattages
Codes Used to Identify Incandescent Lamp Types
GLS | General Service Lighting |
A | General ("Arbitrary") |
G | Globe |
D | Decorative (Flame, Teardrop, Etc.) |
R | Reflector |
FL | Flood Light Type |
SP | Spot Light Type |
PAR | Parabolic Aluminized Reflector (PAR16 = 2" Diameter / PAR20 = 2.5" Diameter / PAR30 = 3.75" Diameter / PAR38 = 4.75" Diameter) |
MR | Multifaceted Reflector |
Incandescent | CFL | Approximate Lumen Range |
25W | 5W | |
30W | 7W | |
40W | 9W | 450lm |
45W | 11W | |
60W | 13W | 890lm |
70W | 15W | |
75W | 19-24W | 1210lm |
100W | 25-30W | 1750lm |
150W | 38W | 2780lm |
Sylvania | Osram | Philips | GE |
GLS | Classic A Shape | Standard A-Shape | A-Shape |
GLS-T | Classic T60 Shape | Standard T-Shape | - |
Candle | B Shape | Candle B-Shape | B-Shape |
Candle Twisted | BW Twisted | Candle BW Shape | F-Shape |
Candle Windshape | BA Shape | Candle BXS Shape | CA-Shape |
Ball | P Shape | Ball P Shape | G-Shape |
Globe | G Shape | Globe G Shape | G-Shape |
Reflector | R Shape | SPOTONE R Shape | R-Shape |
PAR 38 | Par 38 | SPOTONE PAR 38 | PAR 38 |
Tubular | T Shape / Tubular | Tubular | T-Shape |
Pygmy | T Shape / Pygmy | Pygmy | S-Shape |
Striplights | - | Linear T26 / T37 | - |
Linear | Linestra | Linear T30 | - |

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