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Just as a final test, I rigged up two AA batteries ie 3V to see how bright they would be. Answer is not bright enough at all. This confirms that a single 9V battery wil do the job, if it lasts.
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Just as a final test, I rigged up two AA batteries ie 3V to see how bright they would be. Answer is not bright enough at all. This confirms that a single 9V battery wil do the job, if it lasts.