I think this situation will be happened to every buyer ,many people may be attracted by this cheap price ,but in another side,we also afraid too low price will cause product quality to descend seriously, what to do? How to simply identify one LED lamp ? This is a big topic, after all, there are so many kinds of led light, so let's start with the LED bulb. As the biggest export quantity of LED light ,there is no doubt for LED bulb,but it’s not easy for technological requirements.As the size of bulb is small,all the heat is concentrated in the cavity body, once the cooling and temperature control is not good, the whole lamp will be easy to appear dead lamp and light failure too fast, especially more than 7w bulb light. Lets take this inferior bulb and elegentlight bulb for example,we will see the difference: 1.Power supply part: When you got one dri...
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