... No:SN-SD180 2,Power:180W 3,Material:Fin-shaped Aluminum 4,LED light source:High power led BASIC PARAMETERS Item NoSN-SD180Power180WLED ... project, such as the underwater tunnel, the cave tuuel and the bridge tunnel.FEATURES1,Supporting 180W lamp's cooling2,Dustproof ... area is bigger, air convection is better.3,With casette structure, its easy to install led lighting, efficient for mass production.4, ...