If you use  solar  lights, you should be regulating the panel current charge  in accordance with the battery voltage, and this 12V 15A solar controller, with LED  indicator lights and digital display, is just the tool for the job.

Benefits:

 
• PWM charge mode [SOC]
 
• Fully automatic operation
 
• Electronic protection
 
• Suitable for all 12V lights
 
• Microcontroller for digital accuracy
 
• Manual test capability
 
• Detects day/night by using PV array
 
• Single digital LED display
 
• Temperature compensation
 
• 16 field adjustable lighting and timer control options

The solar controller is brand new  and boxed and comes with wiring diagrams and instructions

Specifications:

 
• Voltage: 12V
 
• Charge current: 15A
 
• Load current: 15A
 
• 25% current overload: 1 min.
 
• Load disconnect: 11.1V
 
• Load reconnect: 12.6V
 
• Equalization voltage [10 mins]: 14.6V
 
• Boost voltage [10 mins]: 14.4V
 
• Float voltage: 13.6V
 
• Temperature compensation [mV/˚C]: -30mV
 
• Operating temperature: -35 ~ +55˚C
 
• Dimensions: 141 x 94 x 32mm
 
• Weight: 190g

V1.0