If you do not dimming the lamp, it is best to buy energy-saving lamps, energy saving lamp is 11W, and now less than 10 yuan, you can buy a 18 to 20W, and money is more than two or three; If your lamp is dimming then to have to buy incandescent light bulb, and 11W incandescent is not, the lamp is generally used 25W and 40W for 2-3 yuan to buy a head lamp when the attention is big or small, is a thread or line of .

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