▪Frosted Nano-Plastic Tube ▪13 Watt ▪4100K ▪50000 Average Hour Life ▪2,100 Lumens ▪82 CRI ▪Operates On Instant Start And Select Programmed Rapid Start T8 Electronic Ballasts With 120-277V And 347V Input Voltage ▪Mfg #LED13T8L48FPDIM841SUBG8 ▪"Pkg Of 25"