GE Current SpectraChoice LED PL lamps have a few very nice features. First off they come in Type A or Type B configurations, replacing any G24 base CFL lamp. SpectraChoice is a feature that allows the user to change between 2700K, 3000K, 3500K and 4000K on the lamp itself for added flexibility. GE Current’s LED PL lamps also have a rare 120-347V voltage for nearly universal voltage compatiblity.