| Answer | Crossword Clue |
|---|---|
| LUMINA | Units of light. |
| PHOTS | Units of light. |
| LUMENS | Units of light flow |
| RADS | Units of light energy. |
| PYRS | Units of light intensity. |
| LUMENS | Units of light flow. |
| LUMENS | Light units |
| LUNINA | Light units. |
| LUMENS | Light units. |
| PYRS | Light units. |
| PHOTS | Light units |
| PHS | Light units: Abbr. |
| LUS | Light units: Abbr. |
| LUMENS | Light flux units |
| PHOTONS | Light intensity units |
| WATTS | Light bulb units |
| LUMENS | Light bulb units |
| WATTS | Light-bulb units |
| WATTS | Units listed on light bulb packages |
