I've been seeing these PR base 3 white LED lamps on eBay recently, and now I see there is one that's rated for 3 volts. Does anyone know if the 3 volt lamps put out as much light as the 4.5 or 6.0 volt 3 LED conversion lamps? I have a couple of flashlights that use PR base lamps, and run on 2AA batteries. This 3 LED lamp would make a great conversion for a 2AA flashlight, but only if it puts out full power light, of course. Thanks.