Definition of LED solar lawn light.
Solar lawn lights mainly use the energy of solar cells to work, when the sunlight shines on the solar cells during the day, the light energy is converted into electricity stored in the battery, and then the battery provides power for the LED (light emitting diode) of the lawn lights at night. Its advantages are mainly safety, energy saving, convenience, environmental protection, etc. Suitable for residential community green lawn beautification lighting embellishment, park lawn beautification embellishment.
LED solar lawn light structure composition.
Composed of solar cell module (photoelectric panel), super bright LED lamp (light source), maintenance-free rechargeable battery, automatic control circuit, lamps and so on.
The system composition of LED solar lawn light.
Solar lawn light booster IC, can automatically switch between charging and discharging behavior, when the solar charging board senses sunlight during the day, automatically switch to turn off the light into the charging state, when the solar charging board senses no sunlight at night, automatically switch to enter the battery discharge state to turn on the light. The solar lawn light booster IC can raise the output voltage of the 1.5 volt rechargeable battery to 3.6 volts.
A set of circuit board IC should be matched with a No. 5 rechargeable battery can drive 1 - 7 LED light-emitting diodes; multiple sets of circuit board IC and so on; solar lawn light controller's integral circuit and some peripheral components, the main function contains charging circuit, driving circuit, photosensitive control circuit and pulse width modulation circuit, etc.. The controller has high conversion efficiency: 80~85% (typical value), which can reduce the power requirement of solar cell version; low start-up voltage: 0.9V (maximum value); adjustable output current, etc.
LED solar lawn light light source advantages.
Most lawn lights currently choose LED as the light source, LED long life, can reach more than 100000 hours, low working voltage, very suitable for application in solar lawn lights. Especially LED technology has experienced its key breakthrough and its characteristics have been greatly improved in the past 5 years, and its performance to price ratio has also been greatly improved. In addition, LED is powered by low voltage DC, its light source control cost is low, making it possible to adjust the light and dark, frequent switching are possible, and will not adversely affect the performance of LED. It is also easy to control the color, change the distribution of light and produce dynamic illusions, so it is especially suitable for solar lawn lights.
Solar lawn lamp light source and power supply system design methods have been rapidly developed in recent years due to the unique advantages of solar lawn lamps. Lawn lights are small in power, mainly for decorative purposes, with high requirements for mobility, difficult circuit laying, and suitable for sites with high waterproof requirements. These make the lawn lights powered by solar cells show many unprecedented advantages.
