No need to worry, it's not a stupid question at all! When it comes to power consumption, the BenQ eReading LED Desk Lamp Swing Arm is designed to be energy-efficient. LED technology is known for its low power consumption compared to traditional lighting options. The specific power consumption of the lamp may vary depending on the brightness level you choose and how long you use it. However, LED lamps in general consume significantly less power compared to traditional incandescent or fluorescent lamps while providing comparable or even better illumination. The BenQ eReading LED Desk Lamp Swing Arm utilizes LED bulbs, which are known for their energy efficiency, long lifespan, and reduced heat output. This lamp is designed to provide high-quality lighting for reading and other tasks while minimizing energy usage. So, rest assured that the BenQ eReading LED Desk Lamp Swing Arm is designed to be power-efficient, helping you save energy and reduce electricity costs without compromising on illumination quality. cnl