About the use of LED ceiling light lamp beads. Power greater of Ceiling Light than 30W generally use 1W LED lamp beads, power is less than 30W Ceiling Light generally use small power LED lamp beads (eg 3020,3014,3528, etc.). Recommended for low-power SMD LED, easy to heat, but also improve the luminous uniformity.
Lamp beads can be arranged according to their shape, such as square led ceiling light, lamp beads arranged in a square; If the shape is round, then arranged in a circle. Even so, the arrangement of lamp beads still there are many ways, the internal structure of a typical LED ceiling as shown.

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