Which is good, depends on the actual use of your own product, if it is used in the indication, small power, large Angle, you can choose to patch small power lamp beads.
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If you choose to use in traffic lights, advertising lights, row plug, these products, generally choose direct LED lamp beads better, small Angle, high brightness per unit area.
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High-power lamp beads are generally considered by you in general lighting lamps, mainly cost-effective.
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cob led lamp beads are used in commercial lighting products, the light color effect is the best of these.