GP20Na 20W natrium Lamp
Base:E27 screw base and 4 pins
Supply high quality and low price
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The lamp lit using under the rated voltage, lighting applications must conform to the requirements of the ballast or series switching power supply, make sure not to insert the 220 v power supply directly, bakelite eight feet of wiring the wires of a 2, 7 for tubes, the rest are empty.