Durable and portable, easy to carry, lightweight Energy saving lamps, also called compact fluorescent lamps (CFL) or low energy bulbs, save energy by using the same technology as a fluorescent tube to generate equivalent light output to a conventional tungsten filament bulb but with a significantly lower power requirement. Due to the technology used, they also offer a much longer life expectancy compared to conventional lamps. The marked wattage of energy saving lamps is much lower than that of equivalent conventional bulbs, resulting in lower energy costs per hour of use. Material: Glass and electrical components Light color: White Power: 20W Color temperature: 6400K Base type: E27 Input voltage: 170-250V Frequency: 50-60Hz Size: 15.5 x 5cm Net weight: 55g Package Included: 1 x Light Bulb Note: Please allow 1-5mm variation in dimensions due to manual measurement. Actual product color may vary slightly from images due to differences in screen resolution, brightness, and contrast settings.