LED lights may produce a buzzing sound due to the following reasons: 1. Transformer issue: The buzzing sound might be caused by a faulty transformer, which needs replacement. 2. Ballast problem: The ballast generates a magnetic field, and loose iron sheets may vibrate and create noise. Tightening the fixtures can help. Newer ballasts may also produce noise when overheating for extended periods. 3. Power voltage issue: Excessively high voltage can sometimes cause buzzing. In older ballasts, prolonged overheating may cause asphalt to leak out, resulting in buzzing sounds. Advantages of LED lights include: 1. Energy efficiency: Consumes only a few kilowatt-hours over a thousand hours of use. 2. Long lifespan: Uses semiconductor chips to emit light, with no filaments or glass bulbs, making them resistant to vibration and breakage, with a lifespan of up to 50,000 hours. 3. Health benefits: Emits light free of ultraviolet and infrared rays, with no radiation. 4. Eco-friendly: Contains no harmful elements like mercury or xenon, is easy to recycle, and does not cause electromagnetic interference. 5. Eye protection: Operates on DC power with no flickering. 6. High safety: Requires lower voltage and current, generates less heat, and poses no safety hazards, making them suitable for dangerous environments like mines. 7. High luminous efficiency: Converts 10% of electrical energy into visible light with minimal heat generation.
