
I have three old, solid flashlights that use PR2 bulbs and nickel-cadmium batteries (the batteries are over 20 years old by the way, and they still are Work). Big). Two use C-cells, the other D-cells. I decided to "upgrade" them to LED bulbs and bought the 3v versions for them. Do they work? Yes. But the results are completely disappointing. All three are less bright with LED bulbs. And yes, as others have pointed out, the radiation pattern is less consistent. I could live with that if the brightness doesn't go down. Anyway, this experiment was a waste of money. I will stop at PR2. I have a pair of 2 piece LED flashlights with LED bulbs and they work great and are very bright. This tells me that the problem is with these bulbs.

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