First: Look at the brightness, is usually said that your lamp bead can achieve how much LM (Lumen), LM (lumen) is the measurement of Light bead brightness unit
Second: To see whether the uniform color uniformity, the quality of the good light bead light-emitting very evenly, the same color. The quality of the lamp bead will appear a lamp bead brightness bright, a lamp bead dark phenomenon, the luminous color mess is not unified, will have the obvious dark area.
Third: Look at the chip and chip size, the chip is the quality of the lamp bead is the decisive factor, in general, the greater the stability of the chip is stronger, the higher the brightness, the better the heat dissipation.
Four: see glue and fluorescent powder, generally good products will be imported glue, packaged lamp beads with the hands of the deformation, low quality glue will appear deformation and even cracking phenomenon.
Five: see bracket, general situation bracket is plated Banhong copper bracket, plating Banhong Copper Bracket advantage is the heat dissipation is fast, can better give the lamp bead to dissipate heat, the resistance is small. Some businesses in the market will use ceramic stent to replace the Banhong copper stent, ceramic stent thermal conductivity is very good
Sixth: Look at the packaging process, good quality LED lamp bead color uniformity, colloid consistency is good. This is inseparable from good machinery and equipment, the production of machinery and equipment is a very important factor, good equipment can ensure the stability and consistency of products in the various procedures, to ensure the quality of products rate.
In fact, the most important thing is to see the chip of the lamp, the chip directly determines the color index, brightness, anti-attenuation degree.