High power LED COB packages (Chip-on Board) are formed by bonding one or several pieces of 40 ~60 mil LED chips to an aluminum based PCB. There are colors available from mono color (cool white, warm white, red, orange, amber, green, blue, etc,) to R/G/B mixed color. Dimension of frequently used aluminum PCB is 1515(15x15mm) and 2422(24x22mm). LED wattage of one single COB package is from 1W to 9W.
It is necessary to have COB package mounted onto a suitable heat sink for real application, as considerable amount of heat be generated while LED be turn on.
It is necessary to have COB package mounted onto a suitable heat sink for real application, as considerable amount of heat be generated while LED be turn on.
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