Low-voltage energy-saving lamps are a great choice for those who want to save on power while achieving high light efficiency. Their service life may be limited to 2000 hours, but they work wonders for solar lawn lights and garden lights. You can recognize them easily as they come in black tubes.
The low-pressure sodium lamp is not widely used even though it has a high light efficiency of up to 200Lm/w.
An induction lamp is a highly efficient lighting solution that offers low power consumption and high luminous efficacy. It operates under normal commercial conditions of 22V with a pure sine wave at a frequency of 50 Hz and can last up to 50,000 hours. However, the service life of solar lamps is significantly reduced compared to traditional energy-saving lamps due to the square wave countermeasures used in solar power transformers. The solar power output frequency, voltage, and termination position cannot be compared with traditional electric power, resulting in a shorter lifespan for solar lamps.
LED lights are an excellent choice for various lighting needs, including solar street lights. They offer numerous advantages such as a long lifespan, lasting up to 1000000 hours. Moreover, they operate at a low working voltage, eliminating the need for an inverter. LED lights also provide high light efficiency, with domestic options offering 50Lm/w and imported ones reaching up to 80Lm/w. It is worth mentioning that with the continuous advancement of technology, LED performance is expected to improve even further.