... with traditional fluorescent lamp 2.Heat less than 45 degree during work 1,620lm High Luminous Flux, 1212mm Length, G13 Lamp Base 15W ... 50 to 60HzLuminous efficiency: 110lm/W (equal to 40W traditional fluorescent T8 tube)Luminous flux: 1,620lm ± 10%Color temperature: ... frosted), aluminum shell material, FR4 PCB, LED, driver and G13 socketDimensions: Dia26 x 1,212mmProduct net weight: 350g/pieceColor ...