Hi, I have a number of Malibu metal low voltage lights in my yard. I
have noticed that the glass surface has a layer of film on it that
looks like hard water scales. The light output is dimmer because of
this film on the glass.
Does anyone know of a good way to clean off this film? It is pretty
crusty and it does not come off even when I scratch it with my nails.
Does anyone also which brand of lights give out the greatest light
output, for the same bulb rating?