... current drive, which can extend the LED lifespan;5.The tube has automatic illumination detection device. Only ... ~+60°C Luminous Flux 1760-1950Lm Work environment humidity 65+20%RH length of the tube 0.6m,0 ... .9m,1.2m,1.5m,1.8m dimention 26mm/30mm Induction lamp delay time 30s,60s,80s,180s ,light ... is available in our company: T8,23W intelligent infrared LED underground parking tube light