I would of done a search for this topic if you had a search feature on this forum. I hate to ask a elementary question. I'm doing a project with different fruits and vegetables to see if I can light up a small flashlight bulb. So far, using six oranges, potatos, apples and lemons i can't do it. I can light up a small calculator, but not the bulb. Do I just need to increase the foods in a series to get the desired results, or is their an ampage problem? I know I have the volts, but ........?