螺旋式灯丝 spiral filament

螺旋式灯泡底座 EDISON SCREW ; ES

旋转式信号灯 rotating light ; rotating beacon

螺旋式桅用灯泡 bulb with goliath screw cap

旋转式警示灯 Revolving Light

旋转式聚光灯 swivelling spotlight

旋转式彩色幻灯机 carousel colour slide projector

螺旋式桅灯泡 bulb with goliath screw cap

光控体感旋转式柜灯 light control somatosensory rotating cabinet light