With a lifespan of 15,000 hours, the bulb will last for more than 13 years (based on 3 hours of use per day) Provides 470 lumens of light immediately, without warm-up time to achieve its maximum level of illumination With a color temperature of 2700kelvin, the bulb provides warm white light, creating a welcoming atmosphere in any room. Consuming 5.5 Watts of energy and costing only 1.02 per year to use, this bulb saves up to 86% per year and 87.98 over its lifetime compared to an equivalent incandescent bulb (on the basis of 3 hours of use per day, 0.17 /kWh; may vary according to tariffs and use) The excellent color rendering index (CRI 80) provides a color lively and natural; 270 degree beam angle for wide illumination Non-dimmable bulb, not dimmer compatible Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.