... Environment friendly ,energy saving (80%) 2.Low heat,low power consumption/high intensity3.Instant light up without flickening(<100ns)4 ... 40,000hrs . Application of 4w high power led spotlight It can be application in Living house, Exhibition hall,hospital, supermarket, hotel, ... and high temperature 3. Do not use traditional electronic transformer for power supply. 4. dimmable 5w led bulb is non-water ...