Analysis of parameters of LED bulb and guide for selection and purchase (two)

Four, parameter summary

In fact, no matter what the lights you buy LED, but not to look, but see the inside of the heart, not enough light to see, to plant spectral analysis system measured the corresponding test report, report on at least five parameters we can go, it depends on the parameters of heat dissipation, aluminum shell shell, also declined there is no way to see with the naked eye, need professional instruments.

Five, price analysis

For example: the bulb can be divided into: chip, aluminum substrate, shell, power supply, these parts. Each section has a different brand, different batches, different prices. Equivalent to a free combination. Each part is good, then the price is very high, and vice versa, the price is very low; there are some good use, with a poor part, the price is moderate.

So how should we identify it?

1, to allow the seller to take out the test report, you can see the five parameters at once, roughly the heart of the.

2, Taobao is not recommended to buy the following products of less than $6, after all, the LED lamp has not yet reached the stage of mass popularity, the national standard has not come out.

3, look at the shell, it determines the service life of the LED lamp (heat); see the appearance is the same, the aluminum thickness determines the price.

Six, color temperature selection

Light color: yellow light: color temperature: 2700 - 3500K. (warm effect, warm color)

Color: White: 60006500K. (to achieve a clean and tidy effect, cool colors, now used in summer more)