Now about the pluses:
1. They really save electricity. For example, if you purchase approximately equal for the issued illumination (not by cotton, but really, by eye, the checked light in the room) (0.06 — 0.02) W X 7000 hours (the minimum operating time of the lamp) x 3 rubles per kilowatt = 840 rubles of savings. And this is only on electricity.
