For quality LED light boxes, the answer is yes — with some conditions.
LED technology runs significantly cooler than fluorescent or halogen alternatives. A quality LED light box at full brightness generates very little heat at the panel face, and the LED driver is designed to operate continuously within specified parameters.
Safe to leave on when:
- The product has documented electrical safety compliance — CE marking for UK markets is the minimum
- The installation allows adequate ventilation around the driver component
- The electrical installation is correct and the circuit is not overloaded
Not recommended when:
- Unknown or undocumented electrical components
- Any signs of overheating during normal operation