| Answer | Crossword Clue |
|---|---|
| BLINK | Go on and off, as a traffic light |
| BLINK | Go on and off, as a light |
| flashers | An automatic device causing a light to flash on and off rapidly |
| flasher | flashing light operated by a switching device that automatically turns it on and off alternately |
| reflectography | a technique used to detect underdrawing, etc in a painting, in which infrared light is bounced off the lowest, gessoed layer and the resulting image viewed on a TV monitor |
| RAMPS | They go on and off |
| RAMPS | They go on and off highways |
| STA | Where folks go off and on: Abbr. |
| RAMPS | They go on and off the highway |
