Feature New and high quality Durable and portable, easy to carry, lightweight Energysaving lamps, also called compact fluorescent lamps CFLs or lowenergy lamps, save energy by using the same technology as a fluorescent lamp to generate the same luminous flu as a conventional tungsten filament bulb, but with a significantly lower power requirement. Thanks to the technology used, they also offer a huge increase in lifespan compared to conventional lamps. The marked wattage of all energysaving lamps is much lower than the equivalent conventional incandescent lamp, which therefore costs less per hour. Specification Material Glass and some electrical elements Light color white Power 11W Color temperature 6400K Lamp head type E27 Input voltage 170250V Frequency 5060Hz Size 15.55cm Weight 55g Package includes 1Light bulb Note Please allow 15mm error in the actual dimension due to manual measurement Thanks The actual color may be slightly different from the pictures due to computer screen resolution, brightness, contrast, etc. If you have any questions, please contact us before leaving negative feedback, we will try our best to help you, thank you for your understanding Specifications New and high quality Durable and portable, easy to carry, lightweight Energysaving lamps, also called compact fluorescent lamps CFLs or lowenergy lamps, save energy by using the same technology as a fluorescent lamp to generate the same luminous flu as a conventional tungsten filament bulb, but with a significantly lower power requirement. Thanks to the technology used, they also offer a huge increase in lifespan compared to conventional lamps. The marked wattage of all energysaving lamps is much lower than the equivalent conventional incandescent lamp, which therefore costs less per hour. Material Glass and some electrical elements Light color white Color temperature 6400K Lamp head type E27 Input voltage 170250V Frequency 5060Hz Size 15.55cm Weight 55g Package includes 1Light bulb Notes Please allow 15mm error in the actual dimension due to manual measurement Thanks The actual color may be slightly different from the pictures due to computer screen resolution, brightness, contrast, etc. If you have any questions, please contact us before leaving negative feedback, we will try our best to help you, thank you for your understanding