C 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. C Hama 00232575, 2,9 W, 40 W, E14, 470 lm, Warm white Hama 00232575. قدرت لامپ: 2,9 W, Equivalent bulb power: 40 W, نوع کلاه لامپ: E14, شار نورى: 470 lm, رنگ نور: Warm white, دمای رنگ: 2700 K