We generally use the terms ‘lamp’ or ‘source’ for all types of light-emitting products used in light fixtures to produce the light we need. Every lamp has a variety of characteristics that help determine its most appropriate application. A variety of lamp types are available for residential applications. The most common are incandescent and fluorescent, with light-emitting diodes (LEDs) now beginning to permeate the market.
The following table is a quick reference of the most common lamp types, comparing their energy use, color rendering, life, and where they are typically used. (Note: Due to rapid lighting technology changes, the reader should confirm the latest data from suppliers)
Light Source |
Energy Use |
Color Rendering Index (CRI) |
Life (Hrs) |
Application |
LED | Low | 70+ | 50,000 |
Accent, Task, Decorative |
Compact Fluorescent (CFL) |
Medium | 80 | 10,000 |
Ambient, Task |
Linear Fluorescent |
Medium | 80 | 20,000 | Ambient, Task |
Standard Incandescent |
High | 100 | 1,000 |
Task, Accent, Decorative |
Halogen Incandescent |
High | 100 | 4,000 | Accent, Task |
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