F means that the product is rated in its category in terms of energy efficiency. The Energy Labeling system is based on EU Regulation 2017/1369/EU. F TP-Link KL130B, Smart bulb, چراغ, B22, 2500 K, 9000 K, 800 lm TP-Link KL130B. نوع: Smart bulb, نوع لامپ: چراغ, نوع کلاه لامپ: B22. کلاس بازده انرژی: F, Energy consumption per 1000 hours: 9 kWh, Energy efficiency scale: A to G