The lamp holder has a switch, and has simple and compact structure, small volume and high carry current.

灯昨具有了开关，而且结构简单、紧凑，体 积小，通电电流大。

youdao

The lamp holder has a switch, and has simple and compact structure, small volume and high carry current.

灯昨具有了开关，而且结构简单、紧凑，体 积小，通电电流大。

youdao