These OPUS LED Filament Tubular GLS Shapes are a direct retrofit replacement for any traditional lamp with a cap type of ES, E27, Screw Cap, 27mm. Their stylish, attractive and decorative design mean they are perfect for domestic and commercial environments. The very warm white colour creates a comfortable, ambient light similar to traditional lamps. Instant light with no warm up delay and dimmable. Using only 5 watt, this Tubular T45 lamp will give you a lumen output of 560 lumens and can reduce your energy consumption by up to 80% with an extremely long life of 15,000 hours.