New LED lamp USES "magnetic -" the voice from time to tome, how to eliminate the noise?
Most of this kind of circumstance is the lamp holder and lamp holder caused by poor contact. Power contact bad part will flame out, produce the gas explosion. Cut off the power supply first, carefully check, rusty part to shave their; Lamp holder shrapnel, to place. If not the lamp holder and lamp holder poor contact problem, other connecting plug is normal, that is the problem the inside of the bulb, is not good. Changing a cheap, expensive repair leds can look for electrical master to look at, or to find original factory after-sales service.
Light impact is not big, but it is defective, shake the mostly transit, it is possible that production process problems. Can change, don't change as I said
Open it, switch on the transformer has a magnetic gap, gap, to fill the gap in 502.
Immediately change demand manufacturer to you, do not use the circuit pressure out of the question, you can understand for the power supply circuit is out of order, continuous use may cause a fire may!
