Social and environmental issues
In the production of LED chips, the inorganic acids, oxidants, complexing agents, hydrogen peroxide, organic solvents and other cleaning agents used in the substrate production process, as well as the metal organic gas phase and ammonia gas used for epitaxial growth, are toxic and polluting. These are also conventional chemical substances commonly used in the production of semiconductor integrated circuits and other industries. For LED chip companies that belong to this high-tech category, their processing technology and procedures are strict and effective, making it easy to carry out harmless treatment.
LED control devices (commonly known as driving power supplies) are no different from traditional fluorescent lamps, metal halide lamps, and other electronic ballasts, as well as the toxicity and pollutants generated in the production process of various conventional electronic consumer goods.
The commonly used aluminum alloy shell for LED lamps is similar to the traditional aluminum alloy shell manufacturing, and the toxicity and pollutants generated during the manufacturing process of plastic or iron shells are at least not significantly increased.
In short, there is no need to worry about semiconductor lighting products that people directly come into contact with, as well as environmental issues during the production process.

Personal safety concerns of the people
1. Low LED voltage is very safe and misleading to the public
Many technical personnel in enterprises have a shallow and incomplete understanding of the electrical safety of LED lighting products and driving power supplies, which leads to the electrical safety of many designed and produced LED lighting products completely relying on the safety of the driving power supply. However, the electrical isolation and insulation of many supporting LED driving power supplies do not meet the standard requirements. In addition, a large amount of promotion about the safety of low voltage LED can mislead people to frequently touch the products, resulting in a higher risk of electric shock than traditional lighting products that people subconsciously know their high voltage is dangerous and dare not touch casually.
2. LED blue light hazard issue
Blue chip type white LED has a spectrum that is more concentrated in the harmful spectrum than fluorescent lamps, including energy-saving lamps, resulting in a spectrum that is about twice as harmful as fluorescent lamps. Additionally, the emission point is small and the brightness is high, making the harm of blue light more prominent than other lamps. However, in theory and long-term product safety certification testing, in practice, less than 5% of the strictest LED desk lamps exceed the RG1 risk requirements. These lamps only need to be labeled with a “Do not look directly at the light source for a long time” sign in a prominent position and indicate a safer distance threshold to remind users to meet the standard requirements. They can be sold and used without any problems, which is much safer than looking directly at sunlight for a short period of time. And with the addition of a sanding cover, LED lights have no problems. And it’s not just LEDs that pose a biosafety issue. In fact, some traditional light sources, such as early metal halide lamps, may have more serious UV and even blue light hazards.
3. Strobe issue
It should be said that LED lighting products can be the least flicker free and the most stable in emitting light (such as many matching pure DC power supply drivers on the market). And poorly made products can also have severe flicker (such as those without a driving power supply, where the AC power grid directly supplies power to the LED string or COB-LED), but this is not much different from the flicker problem of straight tube fluorescent lamps with inductive ballast. This does not depend on the LED light source, but on the power supply and driving power source that are compatible with it. The same principle applies to the flicker of traditional light source lighting products.