Now available on the LED lamp bead thousands of tens of thousands of species, what bulb is good then? Good is not the same is the best, is first to suit your product. Shenzhen expand photoelectric production LED lamp bead a decade of experience, in order to better serve customers, teach customers how to judge the LED lamp bead:
1, the LED lamp quality: quality decided to chip led quality. If select small manufacturers production of, poor of lamp beads, do out of lamp with brightness are compared low, because led lamp beads glow chip of quality decided has made of LED lamp beads brightness not high, those chip are is 1-2 points money a star of inferior goods, using a problem on to has leakage (died lamp), authentic chip made of things features, is brightness high, performance stable. Expand the optical, selection is imported chips, such as Taiwan wafer. Fundamentally ensures that led SMD bulb quality issues.
2, heat dissipation: led SMD lamp bead is also important, if cooling condition is not good, led at high temperatures for a long time, light failure will be very big, lamp life will be reduced.
3, led SMD LED color temperature: warm white (2000 k), natural white (3500 k), white (5000 k), color temperature rating, the smaller the better, such large led lit without because the color temperature difference is too big colorful, some yellow, some in white.
4, security standards and certification: quality SMD led factory, through professional equipment is checked, and some smaller manufacturers, is to rely on procurement of parts assembling process that does not pass through inspection and certification. Access optical passed quality system certification, 3C, ROSH certification.