If you look down at the bottom of this page,
Solar Cell, Solar Panel, Solar PV, Solar Products, Charge Controllers, Solar Trackers - Kaneka 60 60W Thinfilm Solar Panel K60 (GSA-60)
You will see some chargers. I kinda like the one for "only $24.96", but I'm unsure about it's survivability when used with a K-60.
The other one I like is the $118.75 unit, since it does higher current & voltage..
But, it only 12V, not 12 & 24 volts..
I sent an email to the dealer (Solar Blvd) and asked them, so maybe next week I'll know.