A++ energy saving is provided by 80% of our lamp. appendix watt gives off 440 lumens worth of light by energy worth. the light temperature is 2700 kelvin and the color of daylight. It has 50,000 hours lifespan. watt: 4watt voltage: 220-240v/50-60 hz lumen: 440 lumens light temperature: 2700k return policy: more than 50 orders can be ordered of this product. orders over 50 pieces swordslife reserves the right to cancel. more than 100 stocks for sale from the campaign price. it determines the selling price of the product you have reviewed. a product may be sold by multiple sellers. the price advantage considering consumer satisfaction on product list and detail pages, delivery speed, return rates and the highest seller will appear in the visible seller of the score set according to the overall service quality. Other sellers are listed as alternatives on the product detail page. This product is not included in the discount campaign. Improved version for clearer understanding and better search visibility. Suitable for users seeking detailed and reliable product information.