Quality problems of LED light source modules

Quality problems of LED light source modules Now that the lighting industry has entered the era of LED, the development and maturity of LED is unexpectedly fast. What follows is that the quality of light source products is uneven, causing confusion in the market. Let's talk about the light source modules currently on the market.

The factors that determine the quality and price of the light source module include the following parts: lamp beads, drivers, plates, and lenses. Lamp beads mainly depend on lumen value, light decay, lifespan (material and packaging technology and use environment), and color rendering index. The drive is determined by the quality, quantity, type, function, and matching of components.

The plate is mainly to examine the temperature resistance, thermal conductivity, insulation performance, and circuit conditions. The quality of the lens depends on the light transmittance, temperature resistance and strength. The picture below is the test comparison of PC material lens (below) and PS material lens (above). The test method is to wrap the three lens light sources of high-quality PC material, ordinary PC material and PS material (from bottom to top) tightly with plastic After five or six floors, it will continue to light up, and the PS material will be in the lower state in about three hours.

After ten days, the appearance of the two PC materials has not changed much, but the light transmittance is different.