The wholesale price of the 20A Digital PWM Solar Controller with LCD varies depending on the order quantity, but bulk buyers generally receive significant discounts compared to retail rates. Larger quantities reduce per-unit cost because packaging, handling, and logistics are more efficient in bulk orders. If you’re purchasing for OEM production, school or college labs, DIY kit assembly, or resale, opting for wholesale pricing offers the best value for high-volume requirements.

The minimum order quantity (MOQ) for bulk 20A Digital PWM Solar Controller with LCD is 100 units. This MOQ helps maintain stable pricing, ensures consistent batch-level quality checks, and allows faster dispatch for large orders. If you require more than 100 units, we can also arrange customized pricing and delivery schedules based on your project, OEM production, or institutional needs.

Yes, GST invoices are provided for all orders. Whether you're a retailer, institute, startup, or company, you will receive a proper GST bill that you can use for input tax credit and accounting purposes. Just provide your GST details during checkout or share them with the sales team.

Yes, the 20A Digital PWM Solar Charge Controller can be used alongside Arduino, Raspberry Pi, ESP32, and other microcontroller platforms in solar-powered projects. While the controller itself is not programmed by these boards, it safely regulates solar charging for 12V/24V batteries, which then power your microcontroller system. This makes it suitable for off-grid IoT nodes, solar-powered Raspberry Pi or Arduino setups, remote monitoring stations, and outdoor automation or sensor systems. The PWM controller handles stable battery management while the microcontroller manages logic, sensing, and communication tasks.

We offer warranty only on branded products, and the coverage is based on the manufacturer’s policy. Generic products do not usually come with warranty, but branded products are covered as per their official guidelines. If you're ordering large quantities and want warranty-backed products, just let us know and we will recommend the best options.