245 Bulb Product Details: G3.5 Bulb Shape | E10 Miniature Screw Base | C-2R Filament | 2.46V | 1.23W | Durable at 15 Life Hours. CEC Industries, Ltd. is an OE (Original Equipment) Manufacturer with proven reliability. CEC lighting products are DOT compliant and meet or exceed SAE standards; durable at 600 life hours. Applications include: replacement lamps for vintage products, slide viewer. All bulbs are shipped in a cardboard box.