The emergence of electricity, let human productivity get a leap, and the emergence of incandescent lamp, also created the history of human electricity to light.
A lamp, a lighting item, generally a device that illuminates. In ancient times, humans used torches for lighting, and later candles and oil lamps. In ancient times, "candle" is a kind of torch made of flammable materials, which is used to hold the torch that has been lit, called candle; Piles of thin grass and twigs placed on the ground for lighting are called singes, those outside the door are called candles, and those inside the door are called singes.
There are three kinds of solar panels on the market for solar lighting: monocrystalline silicon solar panels, polycrystalline silicon solar panels and amorphous silicon solar panels. The conversion rate of monocrystalline silicon panels is higher, between 15-21%, followed by polycrystalline silicon panels, which can reach 16%, and the cost is also lower than that of monocrystalline silicon panels, so it is used by most lighting manufacturers.