Linkable T5 fluorescent Lighting with Big Reflector 1,Specification:8W,14W,21W ... ENEC/TUV/CE Linkable Triphosphor T5 Fluorescent Lighting with Big RelectorProduct Description 1, Specification-14W,21W,28W ... /6400K(warm white/cool white/daylight)3100-3400 6,Nano Film on the Aluminum Reflector Some models ... than traditional T8 , T10 tube.2,Good quality with competitive price;3, Instant start, ,no noise, ...