First of all, apologies if this is not the appropriate forum for such a thing, but I didn't really think it appropriate to put anywhere else. In any case, I bought 2 30 light strings from the HEB up ...
A flickering light could be due to something as simple as a loose or mismatched bulb. Try tightening it before taking any next steps. Flickering may also signal deeper issues like faulty switches, ...
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