This pack contains 4 ValueLights 4w Golfball bulbs with an SES/E14 cap type. The colour temperature is Warm White 2700k, and each bulb produces 440 lumens of light. These LED filament retro golf ball light bulbs feature amber-tinted glass for a vintage feel, with filaments that mimic traditional radio valve bulbs while consuming significantly less energy. Made to top standards, they come with a one-year guarantee against any manufacturing issues. With the latest in LED technology, they are a versatile choice for any room, including kitchens, dining rooms, hallways, living rooms, and bedrooms. Please note, these bulbs are not dimmable.