在地下室、浴室和水池边应使用陶瓷灯座，不要使用金属灯座。
Porcelain lamp sockets, rather than metal ones, should be used in the basement, bathroom and near the sink.
在装上日光灯时，这个锁紧装置能够把日光灯的金属灯头锁紧，日光灯不会从灯座中自行松动脱落。
When mounting a fluorescent lamp, the locking device can tightly lock the metal lamp cap of the fluorescent lamp, thus the fluorescent lamp can not loose and fall off from the lamp holder.
本实用新型公开了一种能充电的电灯，由圆筒灯座、螺圈灯口、灯座底板、导电金属片和蓄电池组成。
The utility model discloses a rechargeable lamp, including a cylindrical lamp holder, a helicoidal socket, a holder motherboard, a conduction metal sheet and a storage battery.
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