The brightness of a lamp mainly depends on its wattage, but it is also related to the light efficiency of the lamp. Traditional incandescent lamps are usually in units of 40 watts, 60 watts, 75 watts, etc. , and LED lamps have higher light efficiency, so they provide brighter luminosity than traditional lamps with lower wattage. Generally speaking, 60-watt incandescent lamps are equivalent to 12 to 15-watt LED lamps, which means that LED lamps are more energy-saving and brighter than incandescent lamps. So when you buy LED lamps, you can check the luminous flux (lumen) in the product information, which will better guide you to choose the appropriate brightness.