Green Sensor Light, KME GSL-020 is a super saving power automatic illuminator that perceives human bodies and lights. It is good to install at front doors, hallways, stairways, elevator entrance, etc. As it is self-operation, it’s convenient and economical. Green Sensor Light is acquired High Efficiency Energy Equipment Certificate by Korea Energy Management Corporation. KME SL-020 and KME-RY 022 are core devices for sensor light.