Best Seller | Karcher 10/20/30/40/50A PWM Solar Panel Regulator Charge Controller 12V/24V Auto Focus Tracking IM0 New Features: 1. Street lamp automatic recognition on-line use. 2. PWM solar charge controller PWM 50: Compared with normal solar charge controller this PWM controller could increase efficiency by 10%-30%. 3. This controller can charge and discharge at the... more | | $17.77 FREE shipping go to store |