Product Type | Typical Luminous Efficacy (in lm/W) |
LED cool white | 130 |
LED warm white | 93 |
LED A19 lamp (warm white) | 64 |
LED PAR38 lamp (warm white) | 52.5 |
High intensity discharge (high watt) Lamp and ballast |
120 110 |
Linear fluorescent Lamp and ballast |
118 108 |
High intensity discharge (low watt) Lamp and ballast |
104 97 |
Compact fluorescent lamp | 63 |
Halogen | 20 |
Incandescent | 15 |
Source: 2011 DOE SSL Multi-Year Program Plan