Whats the best 'drainer' light to get every last ounce of juice out of used 123s? I recall the Inova x5 being a good one, but arnt these 2x123 lights? How does the Surefire L1 compare? Would an L1 be good to finish off my used 123s? Are there better choices? I want to get an L1 but maybe not if theres a much better alternative.
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