Look at the brightness: The brightness of the LED lamp beads is different, and the price is different. The LED lamp beads used for the tool should meet the laser class I standard.

Antistatic ability: LED lamp beads with strong antistatic ability have long life and high price. Usually LED lamp beads with antistatic greater than 700V can be used for LED lamp beads

Test whether the consistency of wavelength is up to standard: LED lamp beads with the same wavelength and wavelength have the same color. If the color is required to be consistent, the price will be high. It is difficult for a manufacturer without an LED lamp bead spectrophotometer to produce a product with pure color.

Test whether there is leakage: LED lamp beads with leakage current are unidirectional conductive luminous bodies. If there is a reverse current, it is called leakage current. LED lamp beads with large leakage current have short life and low price.

Look at the light-emitting angle: LED lamp beads with different light-emitting angles and uses have different light-emitting angles. Special lighting angle, higher price. Such as the full diffusion angle, the price is higher.

Assess the service life: the key to different quality of life is the life, and the life is determined by the light decay. Low light decay, long life, long life and high price.

Distinguish the grade of the chip: The illuminant of the chip LED lamp bead is a chip, and the price of different chips varies greatly. Chips in Japan and the United States are more expensive. Generally, the prices of chips in Taiwan and China are lower than those in Japan and the United States.

Distinguish the size of the chip: the size of the chip size chip is represented by the side length, and the quality of the LED lamp beads of the large chip is better than that of the small chip. The price is proportional to the wafer size.

See if the safety performance is up to standard: The colloid of ordinary LED lamp beads is generally epoxy resin, and the LED lamp beads with anti-ultraviolet and fire-retardant agents are more expensive, and high-quality outdoor LED lighting should be anti-ultraviolet and fireproof. Each product will have a different design, and different designs are suitable for different purposes. The reliability design of LED lighting includes: electrical safety, fire safety, applicable environmental safety, mechanical safety, health and safety, safe use time and other factors. From the perspective of electrical safety, it should comply with relevant international and national standards.