Incredible What Would Cause Landscape Lighting To Go Dim Ideas. Web if you want to dim landscape lighting, you need a transformer that allows dimming and a transformer that is dimmable as well. In outdoor lighting, most problems boil down to three main issues;

Transformers have a limit on the number of light bulbs they can support. The only thing i can think of is that we're springing out of a. Or, it could simply be that your lights are old.