Nice thanks for the info.

Wattage = heat isn't 100% accurate. Yes, generally speaking, more wattage means more heat, but only wattage that isn't converted into light will be converted into heat. So when comparing different lights, one light may be converting more of it's energy into heat than the other.

If we're talking about a single light fixture, yes, increasing wattage will result in a heat increase. But if we're comparing different lights, their wattage doesn't necessarily translate into the same amount of heat.