... samll size 3.cooling by fresh air conversion 4.100% full load burn-in test 5.ce&rohs led lamp driver FEATURE:1.Wide ... energy saving.3.Maintain constant high conversion efficiency even the load changes.("CCE"for short)4.Automatic clamping circuit protection, ... 40 degrees +50 degrees6.Protection:short circuit,over current,over load,over temperature. 7.Waterproof grade:IP67 8.Standardized production, ...