LED Bulb Type B T8 Bulb Base Type Medium Bi-Pin (G13) Bulb Housing Glass Bulb Shape T8 Color Rendering Index 80 Color Temperature 3500K Lumens 1 900 lm Nominal Length 4 ft Shatter-Resistant Yes Watts 13 W Color Selectable No Light Technology LED Bulb UL Type Type B Voltage 120 to 277 V Standards cULus NSF Rated UL 1993 Environmental Rating Damp Location Overall Length 48 in Bulb Minimum Starting Temperature -15 Degrees C Bulb Power Source Requires Separate Ballast