Why is there a minimum and maximum wattage recommended? Why can I run a single 10-watt fixture on any transformer?
All of our transformers require a minimum of 20-watts. This means that you can’t run a single 10-watt fixture with one of our transformers. It’s been tried, and what you get is a very low strobe effect. Very annoying, and potentially harmful to the fixture and transformer, so it’s not recommend. As for the maximum of 60-watts, this is the maximum set forth in the class 2 requirements, so that’s what our transformers were designed to handle. If this maximum is exceeded, the bulbs will burn low and the self-regenerating feature of the bulbs will not work properly causing shorter bulb life and reduced light output. The bottom line is this: If the maximum of 60-watts is exceeded, or if the minimum of 20 watts is not met, the warranty is void and the customer is left out in the cold, so don’t let this happen!