安装，更换和修复照明灯具和电气控制及配电设备，如开关，继电器和断路器面板。
Install, replace and repair lighting fixtures and electrical control and distribution equipment, such as switches, relays and circuit breaker panels.
一种用于控制用于照明设备的电源的开关电路，方法和控制单元(1)。
A switching circuit, method and control unit (1) for controlling electric power supply for lighting fixtures.
介绍一种利用门与光双重控制的自动照明开关。
Recommends an automatic lighting switch in twofold controls by between the door and light.
应用推荐