A: There’s no replacement bulb. However, the unit failed on me within an year of purchase and Homedepot graciously returned it.
A: For as long as you keep them turned on. They're hardwired, not solar.
A: yes, they use a 12 volt a/c line
A: 12 volt dc
A: 12 v dc
A: 12 volt DC.... They run off a 12 volt transformer which is pluged in to your normal home 110 volt a/c outlet.
A: Pretty sure that it is 12V A/C - standard landscape transformers put out 12V or 15V A/C
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