双头灯座 twin lamp holder

双头纱罩汽油灯 double mantle lantern

双头荧光灯 double capped fluorescent lamp

双头应急灯 dual-head emergency lamp ; Double-head emergency light ; Twin emergency light ; Double emergency lights

双头碘钨灯 double end tungsten iodide lamp

内槽双接线式灯头 recessed double-contact cap

双头筒灯 double-headed downlight

双头壁灯 double-headed wall lamp

双头防水应急灯 Double Waterproof Emergency Lights ; Double-head-proof emergency light ; dual-head waterproof emergency lamp