... Dimension:L180*W180*H67hole size:L160*W160mm 20w 2000lm aluminum led square down lighting Features:1.Trust worthy chips: Word ... famous Epistar /Samsung/Bridgelux brand.2.Superior aluminum housing:die-casting aluminum (good rigidity, good durability, long life) .3 ... series including LED ceiling light,LED bulb light,LED spot light,LED tube light, LED down light,LED strip light and LED bar light. ...