Some time ago I installed walkway/garden lights for my mom and dad. They love them. Recently it appeared that half of the lights were no longer working. Last night I stopped by and my Dad gave me a handful of bulbs. I fixed 4 out of 5 dark lights simply by changing the burned out bulbs. One light needed to be replaced completely. Years ago I bought some lights hoping to put some in my yard. Long story short, it never happened. They’ve been in my attic for at least 10 years. I have given the lights to my parents. (I will be installing them if it ever stops raining) The new lights are metal, and 18 – 20 watts as compared to the plastic 4watt lights they have now. I also will be installing rock lights.