5A Manual PWM Solar Charge Controller — Entry-Level 12V/24V Solar Panel Regulator

• Ultra-affordable entry-level solution — lowest-cost solar charge controller for small projects
• Extremely compact and lightweight (60g) — integrates easily into small enclosures and portable setups
• Ultra-low self-consumption (< 5mA) — negligible battery drain when no solar input is present
• Simple manual design — no complex settings, just connect and it works reliably
• LED status indicators — clear visual feedback for charging status, battery level, and fault conditions
• Screw terminal connections — secure, reliable wiring suitable for permanent installations
• Proven PWM technology — mature, dependable charging for basic lead-acid battery maintenance

• DIY Solar Lighting — Small solar garden lights, pathway markers, and decorative solar projects
• Educational Projects — Perfect for STEM classroom demonstrations and student solar experiments
• Trickle Charging — Maintains car, motorcycle, and boat batteries during storage
• Small Livestock Fencing — Powers low-consumption electric fence energizers in remote paddocks
• Security Camera — Solar power for single low-power outdoor security camera installations
• Camping Essentials — Charge small 12V batteries for LED camp lights and device charging

Zhejiang Jingying (JYINS) Electrical Co., Ltd., established in 1993, is a leading manufacturer with over 30 years of expertise in power inverters, solar charge controllers, energy storage systems, and renewable energy solutions. Our 500+ employee factory in Wenzhou, China, serves clients across 50+ countries with ISO9001/CE/SAA/RoHS certified products.

• 30+ years of manufacturing excellence since 1993
• ISO9001, ISO14001, ISO45001, CE, SAA, RoHS, FCC certified
• Dedicated R&D center with 30+ national patents
• OEM/ODM services with flexible MOQ and fast prototyping (7-10 days samples)
• Export to 50+ countries across 6 continents
• Professional pre-sales engineering support and after-sales service

Q: Why choose PWM over MPPT for small systems?

A: For systems under 100W, the cost savings of PWM (typically 80% less than MPPT) outweigh the efficiency gain of MPPT. MPPT becomes worthwhile at 200W+ where the 15-30% efficiency advantage matters financially.

Q: Can I expand this system later?

A: The 5A controller is limited to small systems. If you plan to expand to more panels, consider the 10A-30A PWM or MPPT controllers which support more solar input.

Q: Does it work with lithium batteries?

A: This basic PWM model is designed for lead-acid batteries only. For lithium batteries, we recommend our MPPT controllers with configurable charging profiles.

Q: How do I know if it's working?

A: The LED indicators show: solid green = charging, flashing green = float/maintenance, red = fault/error. The manual includes full LED status definitions.