I use a Xantrex C12 for my outdoor lighting. Nice, reliable unit once you get it set up properly. Lost one in the last 26 yrs. because of a lightning strike..
This unit was the first controller that I ever purchased. Used it on my house system until I out grew it..
Xantrex by Schneider Electric C12 - 12 Amp 12 Volt PWM Charge Controller