Specifications:- Overall Dimension(LxWxH): 11 7/16" x 4 15/16" x 4 15/16" (29 x 12.5 x 12.5 cm)- Base: E39- Input Voltage: 100 to 277 Ac, 50 to 60 Hz- Power: 100 W- Dimmable: Not Dimmable- Luminous Flux: 13000 to 14500 lm- Led Chip: 728pcs SMD2835- Cri: >80- Color Temperature: 5000 K- Working Temperature: -20°C to 45°C- Material: Aluminum, Pc Cover- Total Net Weight: 9.96 Lbs (4.52 kg). Package Contents:- 4x Led Corn Light Bulbs- 4x Manuals. Notice: - In most cases, just screw in. In others, the ballast may have to be bypassed when changing to Led since LEDs use a driver, not a ballast. Please check.