... die-casting aluminium,painting 25W recessed led ceiling light,die-casting aluminium,white, AC180-260V COB LED downlight for stage,garden, tunnel, ... on.The advantage of COB:1. In simple terms, COB is the kind of the LED light source.COB-chip on board, that ... included: 1 x 25W COB Led Downlight 25W recessed led ceiling light,die-casting aluminium,white, AC180-260V COB LED downlight for stage,garden, ...