I was setting out my Christmas-themed solar lights today and was disappointed to see than half have failed because they won't shut off in the light. One of the failed units will just shut off if I hold it against the light bulb. The working units shut off with just ambient room light.
Anyway, these all have a little CdS cell in them, about 3/16" in diameter. They aren't perfectly sealed against water (snow) and that's why they get corroded and fail. I'm pretty sure a replacement cell would get these lights working.
Question: Do I need to worry about any CdS cell specification other than physical size?
Secondary question: Know where to get these cheap?
Anyway, these all have a little CdS cell in them, about 3/16" in diameter. They aren't perfectly sealed against water (snow) and that's why they get corroded and fail. I'm pretty sure a replacement cell would get these lights working.
Question: Do I need to worry about any CdS cell specification other than physical size?
Secondary question: Know where to get these cheap?