(1) Low-voltage energy-saving lamps: low power, high light efficiency, but the service life is 2000 hours, the low voltage tube is black, generally suitable for solar lawn lights, garden lights.
(2) Low-pressure sodium lamp: Low-pressure sodium has high light efficiency (up to 200Lm/w) and is used less.
(3) Induction lamp: low power and high luminous efficiency. The lamp is used under normal commercial conditions of 22V (pure sine wave, frequency 50 Hz), and its life can reach 50,000 hours. The service life of solar lamps is greatly reduced compared with ordinary energy-saving lamps (because solar lamps are square wave countermeters) Transformer, solar power 220V output frequency, term position, voltage can not be compared with electricity.
(4) LED: LED light source, long life, up to 1000000 hours, low working voltage, no inverter, high light efficiency, domestic 50Lm/w, imported 80Lm/w, with the advancement of technology, LED performance Will be further improved. LEDs are used as light sources for solar street lights.
