1. Look at the brightness. General led lamp brightness is different, the price is different, the greater the general brightness price is more expensive, the greater the brightness of the decorative performance is better, in the purchase can let the led lamp beads bright for a while to see how the brightness.

2, test antistatic ability. Antistatic ability of led long life, so the price is high, usually more than 700V antistatic led to be the real led, the use of the process is not easy to burn out due to voltage instability.

3. Wavelength of light. To see whether the consistency of led light wavelength is up to standard, wavelength consistent led light beads its light color is consistent, such as the requirements of color consistent, the price is high, so in the purchase of led light beads must let businesses take out led spectrometer for detection, to see whether the light wavelength is consistent.

4. Safety performance. Safety performance directly determines the service life of the led lamp bead, long ordinary led lamp bead, colloid, generally for epoxy resin, and the market is with uv radiation and fire retardant added led lamp bead, its price is more expensive, but this kind of led lights, safety performance is generally higher when using, especially when installed in the outdoor, can be at ease use.