Hi: I have taken some data on the panel: http://www.prc68.com/I/SMIC.shtml I think it's 48 cells, 31 Voc and the Isc varies but is in the range 0.2 A (rain) to 8A (Sun). It came with a very simple controller for a "12 volt" battery. The next step will be to put my 100 Ah marine battery in that box and mount the panel somewhere where it'll get some Sun. -- Have Fun, Brooke Clarke http://www.prc68.com -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist