Absolutely perfect replacement for C7 ceramic bulbs. They are indistinguishable from traditional incandescent bulbs and do not produce the colorless LED light that is noticeable when mixing bulb types. They also consume part of the electricity. Each conventional lightbulb uses 5 to 7 watts at a time, or 125 to 175 watts for a row of 25 lightbulbs. They use 0.6 watts each, or 15 watts for a row of 25 lamps. are LED, which will no longer be a problem.