| Answer | Crossword Clue |
|---|---|
| PHOTONS | Light intensity units |
| PYRS | Units of light intensity. |
| NITS | Luminous intensity units |
| NITS | Units of luminous intensity |
| DBS | Sound intensity units (abbr.) |
| CANDELAS | Units of luminous intensity |
| DECIBELS | Units of sound-wave intensity |
| DBS | Logarithmic units of sound intensity (Abbr.) |
