With the widespread use of LED light bulbs, the replacement and upgrade of different light bulbs have also made the concept of "equivalent wattage" more and more discussed. When we compare 60 watt vs 100 watt bulb, the wattage and brightness are what we need to figure out first.

What is Wattage and Brightness?​

Wattage is used to measure the energy consumption while many people mistakenly believe it as a direct measure of the brightness. In fact, higher wattage bulbs don’t always mean brighter light. The brightness of a light bulb is measured in lumens. It should be noticed that different types of light bulbs usually emit light with different lumen ratings even at the same wattage. For example, LED lights can emit the same amount of light while consuming less energy (watt) than Halogen bulbs.​

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Is a 100 watts bulb brighter than a 60 watts one?

Under the same lighting system, the higher the wattage of the lamp, the higher the lumen level of its output. However, as stated earlier, wattage is not a measure of brightness, different lights will shine differently at the same wattage, for example, a 40W incandescent bulb has the same brightness as an LED using only 9W brightness (lumens). You can use the following form for reference.

Can a 60 watt bulb be installed in a 100 watt fixture?

Light fixtures can handle a certain amount of wattage. It would be safe if a bulb with a wattage equal to or less than the fixture’s designed wattage. In fact, in some cases, it may even be beneficial to use a lower-wattage bulb in a higher-wattage fixture. For example, using a lower-wattage bulb can help you get a softer or dimmer lighting effect. It is imperative to note that using a higher-wattage bulb in a light fixture with a lower wattage rating can create a fire hazard and damage fixtures or wiring. So be sure to check the wattage rating of the light fixture before installing the bulb.

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