Upgrade your lighting with these 10 LED E27 screw GLS lamp bulbs from Best. Filament light bulbs in a vintage/retro style with a clear finish, these bulbs are both energy-efficient and environmentally friendly. With a luminescence of 470 lm and a colour temperature of 3000k, these bulbs provide a warm white light that is perfect for indoor or outdoor use. These bulbs have a bulb wattage of 4w, equivalent to 40w, and are energy-saving with an energy efficiency rating of A. They have a long lifespan of 20,000-24,999 hrs and are heat-resistant, making them ideal for use in a variety of settings. These bulbs come with CE marking.