Specification: Brand new Type: Solar Charge Controller Maximum Input Volts: 41V Maximum Input Watts: 260W for 12V batteries, 520W for 24V batteries Boost Voltage: 14.6V Bulk Voltage: 14.5V Float Voltage: 13.8V Solar Charge Controller for managing battery charging which helps to increase a batteries lifetime by preventing overcharging and over discharging. Controller includes priority charging function to set between 10% and 90% of solar panel power to battery one or two. Battery should be 12V or 24V Features: Microcontroller digital accuracy State of charge (SOC) showing battery condition Pulse Width Modulation with four stages of charging Controller charges battery types: Lead Acid, AGM and Gel Electronic Protection Against Short circuit Reverse current Reverse polarity Lightning protection Overcharge protection Over discharge protection Package Included: 1 * Solar Charge Controller Shipping 1.If you need to buy in bulk, please contact, we will reply in 24 hours. 2.We are always working hard to ensure your package arrives as soon as possible. Please understand that some factors like weather, high postal traffic, and the performance of shipping companies are outside of our control. 3.Usually product Reaches after about 12-45 business days depending on destination. If you have not received your shipment within 45 days from payment, please contact us. We will track the shipment and get back to you as soon as possible with a reply. Refund or resend product will be offered if item still not received. 4.We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important. We ask you contact us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns. It is impossible to address issues if we do not know about them! THANK YOU :)