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Traditional threaded head bulb has to be transferred with one hand to a lamp which is hold by the other hand. People will not be able to maintain the stability of the ladder with a third hand. Magnetic bulb provides a light bulb with magnet, with the steel on the lamp, the bulb will be automatically attracted to the lamp. The replacement will be complete with one single hand. The convenient way also reduces the fear of electric shock.
Ying Ren Xinyue Hu Chenye Wang