What's The Ideal Wattage For A Bedroom Desk Lamp?

It's recommended to choose a 20-30 watt bulb for a bedroom desk lamp, which is sufficient for reading without irritating the eyes. Too bright light (over 40 watts) can cause eye fatigue, while too dim light (under 20 watts) can affect reading clarity. Regarding bulb color temperature, white light (5000K-6500K) is suitable for studying, while warm yellow light (2700K-3000K) can create a sleeping atmosphere. To protect eyesight, it's recommended to use a dimmable desk lamp and follow the 20-20-20 rule (looking into the distance for 20 seconds every 20 minutes).