Osram dpro stick 14 w840 e27 4008321987037 the osram dpro stick has a low energy consumption 14w and an average life of 10 000 hours the lamp has extremely fast lumen ramp up thanks to quick light technology and also supplies a great variety of light areas of application for this lamp include general illuminations for high quality domestic and professional environments and wherever light is required quickly basee27 screw cap colour temperature 4000k dimensions and weight for t