I bought an 80w light bulb, but the brightness is almost as bright as 36w. Why?

If they are all incandescent lamps with glass bulbs, the marked adaptation voltage is the same, and the brightness of the two bulbs is similar, it must be a mistake.

If it is LED lamps from different manufacturers, there are roughly three reasons for the low brightness of this 80-watt bulb. One is the virtual standard of power, the other is the assembly of lamp beads with poor luminous efficiency, and the third is the different color temperatures. For example, the color temperature of 80 watts is 2500k, and the color temperature of 36 watts is more than 7000k, which will happen.