1.What is solar lawn lamp?
What is a solar lawn light? Solar lawn lamp is a kind of green energy lamp, which has the characteristics of safety, energy saving, environmental protection and convenient installation. When sunlight shines on the solar cell during the day, the solar cell converts the light energy into electrical energy and stores the electrical energy in the storage battery through the control circuit. After dark, the electric energy in the battery supplies power to the LED light source of the lawn lamp through the control circuit. At dawn the next morning, the battery stops supplying power to the light source, the lawn lamp goes out, and the solar cell continues to charge the battery, and it works over and over again.
2.Compared with traditional lawn lights, what are the advantages of solar lawn lights?
Solar lawn lights have 4 major features:
①. Energy saving and environmental protection. The traditional lawn lamp uses mains electricity, which increases the city’s electricity load and generates electricity bills; while the solar lawn lamp uses solar cells to convert light energy into electrical energy and store it in the battery, which is energy-saving and environmentally friendly.
②.Easy to install. Traditional lawn lights need to be ditched and wired before installation; while solar lawn lights only need to be inserted into the lawn using ground plugs.
③. High safety factor. The mains voltage is high, and accidents are prone to occur; the solar cell is only 2V, and the low voltage is safe.
④. Intelligent light control. The switch lights of traditional lawn lights need manual control; while the solar lawn lights have a built-in controller, which controls the opening and closing of the light source part through the collection and judgment of light signals.
3.How to choose a high-quality solar lawn light?
①. Look at the solar panels
There are currently three types of solar panels: monocrystalline silicon, polycrystalline silicon and amorphous silicon.
Monocrystalline silicon energy board Photoelectric conversion efficiency up to 20%; stable parameters; long service life; cost 3 times that of amorphous silicon
The photoelectric conversion efficiency of polycrystalline silicon energy panel is about 18%; the production cost is lower than that of monocrystalline silicon;
Amorphous silicon energy panels have the lowest cost; low requirements for lighting conditions, and can generate electricity under low light conditions; low photoelectric conversion efficiency, decay with the continuation of lighting time, and short lifespan
②. Looking at the process, the packaging process of the solar panel directly affects the service life of the solar panel
Glass Lamination Longer life, up to 15 years; highest photoelectric conversion efficiency
PET lamination Longer life, 5-8 years
Epoxy has the shortest lifespan, 2-3 years
③. Look at the battery
Lead-acid (CS) battery: sealed maintenance-free, low price; to prevent lead-acid pollution, should be phased out;
Nickel-cadmium (Ni-Cd) battery: good low temperature performance, long cycle life; prevent cadmium pollution;
Nickel-metal hydride (Ni-H) battery: larger capacity under the same volume, good low temperature performance, low price, environmental protection and no pollution;
Lithium battery: the largest capacity under the same volume; high price, easy to catch fire, causing danger
④. Look at the LED wick,
Compared with non-patented LED wicks, patented LED wicks have better brightness and lifespan, stronger stability, slower decay, and uniform light emission.
4. Common sense of LED color temperature
White light Warm color (2700-4000K) Gives a warm feeling and has a stable atmosphere
Neutral white (5500-6000K) has a refreshing feeling, so it is called “neutral” color temperature
Cool white (above 7000K) gives a cool feeling
5.Application prospects
In developed countries such as the United States, Japan, and the European Union, the demand for solar lawn lights has shown a rapid growth trend in recent years. European greenery is very good, with high lawn coverage. Solar lawn lights have become part of the green landscape in Europe. Among the solar lawn lights sold in the United States, they are mainly used in private villas and various event venues. In Japan and South Korea, solar lawn lights have been widely used on lawns such as road greening and park greening.