Morningstar SunGuard Charge Controller, 4.5A, 12 VDC, SG-4

Features:

ISO 9002 quality programs
Series design (not shunt)
100% solid state
True 0 to 100% PWM duty cycle
Setpoint accuracy to 60 mV
Temperature compensation
Rated for 25% overloads
No need to derate
Lightning protected with 1500 W transorbs
Self-consumption is 6 mA
Fully encapsulated in epoxy potting
ABS plastic, impact-resistant case
Outdoor rated, Hypalon connecting wires

Spec Sheet