The energy efficiency class of this bulb is F. If you have dimmer switches in your home, you can use bulbs such as this one.
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LEDVANCE Smart LEDLamp with WiFi Technology, Base: E27, Di mmable, Tunable White (2700-6500K), RGB Colors Changeable, Replaces Incandescent Lamps with 100 W, SMART+ WiFi Classic Multicolour, 1-Pack
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