Product Overview Bulbs 20T-6.5 DC 120V This is a 120 Volt bulb with a BA15d Bayonet base. Please review the images for details. Unlike some other brands, these CEC bulbs feature a filament that runs the length of the glass, resulting in a much better light distribution, and a cooler running filament. For additional specifications, please review the item specifics. Reviews (No reviews yet) Write a Review