Plese Check Photo and Discription. Please feel free to message me if you have any concerns. This is a complete set of all the bulbs (lamps) used in the McIntosh MC2255. 21 bulbs of 4 different types are used. The following is a description of each bulb, its standard, and where it is used. There are four bulbs that are shaped like a normal light bulb. These are 1866 bulbs, which illuminate the entire front panel from the rear. No tools are required to replace them. There are 8 bulbs without a metal socket, which are 259 bulbs and illuminate the right and left meters with 4 bulbs each. They are simply plugged into special sockets, so no tools are required to replace them. There are nine small white bulbs. Four of them are 7382 (14V 0.08A) and are used in the Power Guard. When replacing them, soldering work is required. The remaining five are 7381 (6.3V0.2A) and are used for the McIntosh logo and the mode switching part of the meter. This also requires soldering work when replacing them. Currently, more and more companies are discontinuing the use of bulbs with conventional filaments for the sake of ecology. If you intend to use the bulbs for a long time in the future, you should consider having spare bulbs. It is also recommended to replace all bulbs at once. We provide valid Tracking Numbers for all orders. Exchabge possible within 30 days.