| Label | Type |
|---|---|
| 0 | LED |
| 1 | CCFL, Fluorescent Lamp, Hg Lamp ( A light source with element mercury ) |
| 2 | Sun, Sky, Star ,Incandescent Lamp, Halogen Lamp ( A continuum light source ) |
| 3 | Neon Lamp |
| 4 | Helium Lamp |
| 5 | Hydrogen Lamp |
| 6 | Nitrogen Lamp |