... lighting shape, without extra lens, Super Bright LED(130-140lum/W), Low Light decay: only 4% after using for 10000 hourscontrollerGuolu ... Over-charge, Over-discharge, with Light Sensor & Timer, including the Digital LED Driver to drive the LED lighting, Protective Rank IP67, It ... when the darks approaching, the LIGHT SENSOR of the CONTROLLER will turn on the LED lamp automatically, while this time ...