What are the high efficiency of incandescent and fluorescent lamps?
High efficiency of fluorescent lamps
Indicating that the heat loss of incandescent lamp, fluorescent lamp heat loss is low ah.
Electric energy is converted into heat, not light, so inefficient.
Turn on the lights after 20 minutes, the incandescent lamp temperature is certainly high, which shows that incandescent lamps have more
Of course, this efficiency refers to the efficiency of electrical conversion into light