LED T8 Dimmable Light Tube 16W, 4ft 0  100% dimmable, saves up to 50% energy Up to 40.000 hrs life time (more than 4 years) Ideal for retrofitting the T12 fixtures with broken ballast Light output 1200 Lumens = 40 Watt T12 fluorescent tube 4 ft long, Only 16 Watt Power Consumption, 4000K light