Technical specifications product life (rated) 15,000 h color temperature 3200 k rated power 8w product dimensions 35 x 110 mm energy consumption kwh /1000 h 4 kwh mercury content no mercury luminous flux (nominal) 400 lm nominal power 8 w % warming up to 60% light time &lt 0.10 sec operating temperature -20 °c ~ +40 °c energy efficiency class a++ dim feature cannot be dimmed. maximum 50 pieces of this product can be ordered. swordslife reserves the right to cancel orders over 50 pieces. more than 10 stocks are offered to be sold at the campaign price. the seller determines the selling price of the product you have examined. Improved version for clearer understanding and better search visibility. Suitable for users seeking detailed and reliable product information.