Adjustable brightness: G4 LED lamp emits 200 lm, 3000 K warm white light and 360° beam angle, dimmable. You can adjust the desired brightness according to your needs, creating a pleasant and bright atmosphere for your room, no blue light, compatible with most dimmers, ideal for LED dimmers, high quality dimmers do not flicker. Excellent Performance: Built-in high-quality LED chip, no hum, no glare, no flicker, no warm-up required Achieve maximum brightness, protect your eyes. Energy efficiency and longevity: LED G4 12V bulbs can replace traditional halogen bulbs Replace 20W. They only use 10% electricity to achieve the same or higher brightness, saving you 90% on electricity bills. Its lifespan is up to 30,000 hours, saving you from having to change bulbs frequently. Safety and Health: CE and RoHS certified，IRC> 80 and provides vivid visual enjoyment with the original color. There is no radiation and no pollutants such as mercury, no UV or IR. High quality silicone material, high