| FADER | A device or control for varying the intensity of light (5) |
| DIMMERSWITCH | Device for varying the intensity of a light (6,6) |
| GIZMO | Device or control that is very useful for a particular job (5) |
| PEDAL | Any of the several types of foot-operated levers or controls for mechanism |
| KEY | Shift or control, for example |
| VALVE | Device for varying the pitch of a brass instrument such as a trumpet, French horn, trombone or tuba (5) |
| TONER | Lotion, such as rosewater, for the face; a device or exercise for firming a part of the body; or, pigmented powder used for xerography (5) |
| LETUP | A pause or reduction in the intensity of something dangerous or difficult (3,2) |
| STORM | Word describing the intensity of the wind and weather conditions when categorised as 10 on the Beaufort scale (5) |
| ODOUR | An olfactometer measures the intensity of what? (5) |
| DIMMER | A rheostat or switch for varying the brightness of an electric light (6) |
| AMPUP | Increase the intensity of |
| MUTED | Softened or muffled the sound / subdued the intensity |
| DIMMERS | Devices for varying the brightness of electric lights (7) |
| LUMINANCE | From "light", the intensity of said "lux"; or, the brightness of a television (9) |
| EASED | Reduced the intensity. (5) |
| THROTTLE | A device or pedal in a motor vehicle that affects the amount of fuel entering the engine (8) |
| AERIAL | A device or piece of wire that receives TV or radio signals and is often attached to a car or building (6) |
| LOCK | Word for a device or mechanism for fastening, from which a type of canal enclosure derives its name (4) |
| EXPOSURE | Quantity or intensity of light reaching a photographic film (8) |
