Why solar LED lights are better than traditional bulbs
At present, new solar lights generally use LED bulbs as their illumination sources. This is another advantage of solar outdoor lighting in addition to its green and sustainable use of solar energy. Although LED lights are still very young compared to the incandescent lamps, which have more than one-hundred-year history, they have obvious advantages over traditional bulbs. Today we will discuss the advantages of LED lights compared to two kinds of traditional bulbs, including incandescent bulbs and energy-saving bulbs. Additionally, we will discuss the disadvantages of LED lights that have not been perfected.
This is the biggest advantage of LED lights. The power of one incandescent bulb varies from 20W-100W, and the power of one so-called “energy-saving bulb” is between 5W-65W. Energy-saving bulbs are a more advanced type of traditional bulbs, and their power is reduced by half. However, the energy saved by energy-saving bulbs is nothing compared to LED lights—the power of one LED bulbs is only 0.8W-12W. It can be seen that the power ratio of the LED bulb to the traditional bulb can reach 1:7, which means LED lights can significantly save your electric bill. That’s on top of the savings earned from using free solar energy for solar LED lights.
Long Service Life
The lifespan of incandescent bulbs and energy-saving bulbs are around 1000 hours and 8000 hours (measured for working 4 hours per day), compared to about 50,000 hours for LED lights (measured for working 24 hours per day). Besides, since LEDs do not have any glass components, they do not easily break like traditional bulbs, which means they have longer service life.
Both incandescent bulbs and energy-saving bulbs produce IR (infrared) and UV (ultraviolet) radiation while working, which may affect human health and the environment in some cases. LED bulbs are safer and more environmentally friendly because they do not have this radiation.
Solar LED Light
Based on the above advantages, solar LED lights are even more advantageous. Solar electric lighting systems do in fact connect to a truly “infinite” power source – the sun. They can be charged during the daytime and used at night, and there is no need for complex and expensive pipeline laying. Solar LED lights can really save a large portion of electricity and maintenance fee.
Although LED bulbs have many advantages—more than those discussed above, they still have defects that need to be perfected. The first comes from their less than competitive price, but the advantages of energy saving and long service life mentioned above can make up for its high initial cost. In the future, we still need to reduce the manufacturing cost of LED bulbs by improving technology to lower their purchase price.
The second drawback of LEDs is their temperature dependence. The performance of LED lights is highly determined by the ambient temperature of their operating environment. Excessive driving of the LED at high temperatures can cause the LED package to overheat and eventually result in device failure. It is especially important in automotive, medical, and military applications because the equipment must operate over a wide range of temperatures, which requires a low failure rate. However, this defect is not obvious for solar outdoor LED lights.
In conclusion, LEDs for outdoor use, such as solar LED streetlights, are still recommended. Although the initial capital investment will be relatively large, over time LEDs can pay for themselves through energy savings and a long service life.