Professional Custom Lamp Holder Accessories Manufacturer

At present, the use of screw lamp holders E27/27 and E27/35. These two bulbs metal thread diameter is 27 mm, and the height of the metal thread, 27 mm and 35 mm respectively, the General a threaded lampholders. With the bulb Although screwed the cap, but the lamp metal will always be some exposed, such as wiring errors caused by personal electric shock. To this end, it should be noted that: FireWire without switch is not connected to the lamp holder center, regardless of the switch-off, or whether or not the light bulb the thread exposed part of the total power. 2, Firewire without switch, directly connected to the lamp holder center, even if you disconnect switch, current still flows through the filament lamp, exposed parts of the charged metal thread. FireWire into the switch, but not into the lamp center, and connected to the threaded metal, such as the switch is engaged, the lamp holder exposed metal part still has power.