The ideal wattage for a reading lamp depends on the desired brightness and the type of bulb used. A good target is around 470 lumens, which can be achieved with different wattages depending on the bulb type.
Here's a breakdown:
According to the provided information, a bulb of 75 watts has a lumen count of 1100, while a 40-watt bulb has a lumen count of 470.
Therefore, a 40-watt bulb would be perfect for daily reading and writing.