General description E27 halogen bulbs are crafted from high-quality glass, offering an average lifespan of 2000 hours. They are lead and mercury-free, providing instant lighting without the need for preheating. This pack includes five bulbs, making it a great choice for various lighting needs. Technical specifications Power: 42W Voltage: AC 220-240V Luminous flux: 650lm Color temperature: 2700K (Warm White) Diameter: 55mm CRI: > 80+ Usage The E27 A55 light bulb is ideal for a variety of settings, including home, office, bedroom, kitchen, hallway, dining room, exhibition hall, and showcase. It is commonly used in ceiling chandeliers, wall lights, floor lamps, and table lamps. Other information The bulbs are dimmable (10-100%), allowing you to easily adjust the lighting environment to your preferences without flickering, which helps protect your eyes. The 360° beam angle ensures even lighting without dark areas.