Check the listing for details. (10 Pack) - 6.3 Volt LED Bulb Concave 44/47 Base (BA9S) Pinball - RED. Condition: New. Listed at 4.99 USD. Listing is for a package of 10 COLOR - RED Concave LED Bayonet Base (Replaces 44 / 47 bulbs) Upgrade those power hungry incandescent bulbs to LEDs! LEDs have a very long life span and use a lot less energy than standard bulbs. They generate almost no heat and come in a variety of colors that make inserts really stand out. The Concave LEDs output light at 170 degrees and are ideal for general illumination and backbox lighting, as well as insert sockets that are at an angle to the playfield. LEDs are tricky to photograph. These photos are primarily to show light dispersion and color. They may not be the best indicator of overall brightness. Available in Cool White, Warm White, Red, Blue, Green, Yellow, Purple, Orange, and Pink Thank you for looking!