Technical specification: Rated voltage AC110-220V (50/60Hz)/DC24V Operating Temperature -20 °C ~ +50 °C Operating power 800W Installation Method Ceiling mounted Detecting angle 360 degree Contacting way input 220VAC, output 220VAC Lux range 5 Lux ~ 500Lux ± 20% ajustable Delay range 16~1000 Secs ± 30% Detector destance 8 M