THE LED GUARD LAMP WHICH HAS A RESPONSIVE EFFECT IN ROAD ENVIRONMENT

摘要

PURPOSE: An LED guard lamp having a responsive effect in road environment is provided to minimize power consumption while maintaining high illumnance. CONSTITUTION: An SMPS device(10) chooses a constant current system. An electronics lighting sensor unit(20) selectively applies rectified power. A lighting LED(30) is always turned on by the applied power. A sensor(40) senses an object and illuminance. A selective lighting LED(50) is turned on while receiving power and performs selective lighting through a relay(60).