If the bulb does not light, remove the power contact from the socket when the power is off. The socket's power contact may become flat due to prolonged use. These E14 LED bulbs are NOT dimmable and do not flicker. A stable and reliable light source can prevent visual fatigue and protect your and your family's eyesight. High brightness (300 lumens), low energy consumption (energy class A+), 360° beam angle, and high-transparency PC lampshade make these 5-watt LED bulbs suitable for replacing 50-watt incandescent lamps, saving up to 90% electricity. Bulbs with a high color rendering index (CRI>80) can more accurately reflect the true color of objects and offer vivid visual enjoyment. Energy-efficient SMD 2835 LED chips, a ceramic cooling base, and a high-quality PC lampshade ensure their durability. The lifespan can reach more than 30,000 hours. Suitable for indoor lighting, such as chandeliers, ceiling lights, ceiling fans, wall lamps, desk lamps, etc. It provides a good lighting