... temperature4.High-precision constant current drive, which can extend the LED lifespan;5.The tube has automatic illumination detection device. Only ... set- up cost.8. Use RoHS aluminum, fully solve the LED heat transport problem, so that the lamp can keep in ... ,60s,80s,180s ,light a litter or dark totally Correlated Color Temperature: 1.Warm White(WW):2700-3500K2.Pure White(PW):4000 ...