Howdy jeff1961, I have seen water accumulations on some of my leaves as well. They usually show up where other leaves lay in contact or are very close to another leaf. My theory is that it is condensation from the leaf expiring water during the natural process. I have only spotted the 'droplets' in the mornings, just after the lights come on. I think that the relatively cooler temperature at night is causing the condensation. If You have enough air circulating around the plants, there should not be a great problem with it.
Good luck with Your growing.