With the advancement of science and technology, and the improvement of people's living standards, traditional incandescent lights and energy -saving lamps are gradually withdrawing from the historical stage. Instead, it is LED lights with high brightness, low power, and long life. However, when choosing to buy LED lights, it is probably found that the price gap can reach dozens or even hundreds of dollars when LED lights with similar size and appearance. So what are the differences between these LED lights? How can we buy a low -cost LED light? In fact, as long as these three methods are used, you can easily judge the quality of the LED light.

Method 1. Exterior

The appearance is the simplest method.

First, observe whether the outer packaging is regular. Whether there are sites, trademarks, qualification certificates, CCC qualification certificates, etc.

Secondly, check the quality of the electric lamp, mainly observe the wiring process, bottom plate materials and mask quality.

Method 2, light source

The biggest effect of the electric lamp is naturally lighting. But lighting also has the differences between advantages and disadvantages. The inferior light source is extremely destructive to the atmosphere and vision.

When buying, the electric lamp can be powered on to remove the mask. Put the light source directly on the wall. Observe the wall, high -quality light sources, uniform brightness distribution, no light spots.

Method three, fever

The heating of electric lamps is normal after power -on, but the heat of different quality electric lights is also different.

After the electric lamp is powered on for a while, remove the mask and touch the lamp bead with your hands. High -quality electric lights, the lamp beads are uniform as a whole, and the temperature is not hot.