How does the LED ceiling lamp power supply match?
Change the lamp, the output 300V, accidentally, will give you a surprise, the old power estimation is bad, direct plus constant current driver or RC Buck Driver, do not use, is definitely fake products, if you have electrical maintenance capability, see the lamp string and the way to change. With a good supply, if there is no knowledge, forget it, or to spend money to buy, after all, LED is to use safety and environmental protection, get hurt yourself but not good.
LED. power suggested a direct replacement patch is 12V.300V you should be wrong, or manufacturers virtual standard. No 300V voltage. If so, you're a tragedy. Now is the direct replacement patch. You can only change the inside light source, not the outside shell. Taobao sold patch. More power, longer life than beads.
You have this power supply is high voltage output, current limiting 40mA, the general power now used are 300mA constant current source, used to connect a number of high-power LED series. Your power supply mode is relatively easy to damage, and may be equipped with a new power supply can not be used again, because the LED monomer is aging or damaged.
No recommendation is the best buy, well-known manufacturers of products, do not feel bad money, you put your money back in LED Province, province electricity maintenance air conditioning fee will soon see, buy the best output power specifications, 36V, 24V or 12V, these are commonly used safe voltage range, easy to find alternative, but LED the lamp power will be better, don't worry about bad.
