$26.99, located in Los Angeles, California, USA (900**), item #125796747672
【99% Efficient MPPT Technology】. 【95% MPPT Charging Efficiency】. Compatible with 12V ~ 48V DC input, it's able to handle maximum of 780W(12V)/3120W(48V) input solar array, and can draw maximum of 60A output current to battery bank.