Dimmable Function: Classic design GLS A55 allows for smooth dimming to adjust brightness and create the perfect ambiance for any room. 624 lumens with E27 Edison screw base. Energy Efficiency: The E27 halogen bulb offers improved energy efficiency compared to traditional incandescent bulbs, helping to reduce electricity costs while providing bright and reliable lighting. 2000 hours average lifespan. Natural Color Rendering: Enjoy natural and vibrant light with a high color rendering index (CRI > 99) and 360-degree beam angle for a more accurate and pleasant lighting environment in your home or workplace. Easy Installation: Features a standard E27 screw base for easy installation and wide compatibility with various fixtures, ensuring convenient setup and versatile use. Wide Application: The E27 42W halogen bulb is suitable for use in bedrooms, kitchens, living rooms, bathrooms, restaurants, hotels, exhibition halls, and retail displays.