Solar controller and voltage stabilizer designed for solar panel charging and DIY power adapter projects. Provides regulated DC output and supports speed charging protocols Quick Charge 2.0 and 3.0, and Power Delivery 2.0 and 3.0 for fast, compatible device charging. Key benefits Stable DC output from variable solar input: smooths and stabilizes voltage from solar panels so downstream devices receive consistent power for reliable charging and operation. Fast charging compatibility: supports Quick Charge 2.0 and 3.0 and Power Delivery 2.0 and 3.0 profiles to enable higher charging speeds for compatible phones, tablets, and USB devices. Designed for DIY power adapters: includes a regulated DC output suitable for building portable chargers, power banks, or custom adapter circuits. Compact, integrationfriendly design: small form factor and straightforward wiring make it easier to install in portable and fixed solar setups without adding bulk. Functional highlights Solar panel voltage stabilization for smoother charging behavior under changing light conditions. speed charging negotiation with devices that support QC 2.0, QC 3.0, PD 2.0, and PD 3.0 standards. Dedicated DC output for direct connection to DIY adapter circuits or external battery systems. Automatic handling of supported fastcharge protocols to simplify use with a wide range of devices. Compatibility and performance Works with solar panel inputs and DCpowered devices that are commonly used in portable and small offgrid systems. Compatible with smartphones and tablets that support Quick Charge or Power Delivery standards, as well as USBpowered accessories. Suitable for integration into DIY power adapter and charger projects that require a regulated, fastcharge capable DC source. Typical use scenarios Portable solar charger: integrate the controller into a foldable solar panel and battery pack to provide stabilized, fastcharge outputs for phones and tablets during travel. DIY power adapter project: use the DC output to build a custom adapter or power bank that delivers regulated PD and QC charging to connected devices. Small offgrid electronics: stabilize solar input for boat, camper, or remote sensors and devices that require consistent DC power and quick charging when needed. What it delivers A compact, functionfocused solar controller that stabilizes panel voltage and provides fastcharge compatible DC output for DIY chargers and small solar systems. Designed to simplify integration and support common fastcharge standards without adding unnecessary complexity.