Renogy 40A 12V/24V Auto DC Input MPPT Solar Charge Controller Parameter Adjustable LCD Display Solar & Solar Panel 200 Watt 12 Volt, High-Efficiency Monocrystalline PV Module Power Charger

• Product 1: Innovative MPPT Design, up to 99% efficiency and Operate with Battery when Battery is 0 Volt: Renogy MPPT technology is with a high tracking efficiency of up to 99% and peak conversion efficiency of 98%. It is the best charging solution even in cloudy environments where the max power point of the solar panels will fluctuate all day. Even when the battery is dead (at 0 volt), the controller can activate it with small current and bring it to life. Product 1: 12/24 Automatically Detect and Multiple Battery Adaptation: Capable with and automatically detects 12V or 24V DC system voltages. Perfect for Sealed Lead Acid, GEL, Flooded Battery. Especially design of user mode to let user custom Lithium Battery parameter manually to solve the common issue of voltage matching of lithium battery. Product 1: 4-Stage Safely Charging: Features 4-stage charging (Bulk, Absorption, Float, and Equalization) of Lead Acid Batteries and 2-stage charging (Bulk and Absorption) for Lithium batteries as well as Lithium Reactivation. Intelligent charging method prolong your battery’s life. Product 1: Extremely Safe: Full system protection from program and insulated shell safeguards your solar system. The intelligent self-diagnostic capability can assess and protect against reverse polarity, battery overcharging, battery over-discharging, overload, short-circuiting, overheating, and reverse current. The UL certificated Rover charge controller with insulated shell prevents you from accident and keep your solar system in safe in high temperature. Product 2: [Reliable] Advanced encapsulation material with multi-layered sheet laminations enhance cell performance and provide a long service life. EL-tested solar panels. no hot-spot heating guaranteed. Bypass diodes minimize power drop caused by shade.TPT back sheet ensures smooth performance over a long period of time. Product 2: [Durable] This 200 watt solar panel guaranteed positive output tolerance (0-3%). withstands high winds (2400Pa) and snow loads (5400Pa). A corrosion-resistant aluminum frame allows for extended outdoor use with a typical lifespan of decades. Anti-reflective, high transparency, low iron tempered glass with enhanced stiffness and impact resistance. IP65 rated junction box provides complete protection against environmental particles and low-pressure water jets. Product 2: [Versatile] This solar panel can be used for many different applications. Ground mount compatible. Compatible with on-grid and off-grid inverters. Product 2: [Installation Ready] Ready Pre-drilled holes on the back of the solar panel to allow for fast mounting and securing. Pre-drilled holes included for grounding. Compatible with different Renogy mounting systems such as Z-Brackets, Pole Mounts, and Tilt Mounts.