* Estimated delivery times start from the date of shipment, excluding processing time.
* Actual delivery times may vary due to holidays, weather conditions, or customs delays.
Return items will be accepted within 40 days when is the date of receiving the goods. Customized items cannot be returned or exchanged. Items bought with an e-gift card are exchangeable only; refunds are not applicable.
Free Gift
Welcome to Roymall, your professional website for purchasing premium department store gifts. We highly value and appreciate your support, and we want to express our gratitude by adding an extra touch of excitement to your purchases. When you shop with us, you not only get to enjoy high-quality products that enhance your lifestyle, but you'll also receive an exclusive free gift with every order you place. Ready to explore our collection and find your perfect gifts? Browse our selection of premium department store items, place your order, and look forward to the excitement of your free gift arriving alongside your purchase.
Shipping Policy
We will work hard to deliver items to you after receiving your orders and make sure they arrive safely. Delivery details will be provided in your confirmation email.In most cases, orders are processed within 2 days.Under special circumstances, it will be delayed as follows: When you place an order on Saturday, Sunday or public holidays, it will be delayed for 2 days..Normally, it needs 5-7 working days (Monday to Friday) without being affected by flight delay or other environmental factors..Because our shipping service is worldwide so the delivery times will depend on your location so it may need a few times and please wait patiently if you are in remote districts or countries.
1. Return & Exchange Policy
We only accept items purchased from roymall.com. If you purchase from our local distributors or other retailers, you cannot return them on our side.Final sales items or free gifts are not acceptable for a return.To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.After receiving return instructions from us, please package up your returned items and drop your package at the local post office or another courier. We will process your return or exchange item within 3-5 working days after we receive it. The refund will be processed and credited automatically to your original method of payment.No returns or exchanges can be accepted if the product was custom produced, including custom size, custom
color, or custom printed.Need more help, please contact us. service@roymall.com or Whatsapp: +8619359849471
2.Refund Policy
You'll get a full refund or 100% store credit after we receive the returned package and check it. The refund will be processed and credited automatically to your original method of payment.Please note that shipping costs and any duties or fees are not refundable. The extra shipping costs are non-refundable once the package has been shipped. You are responsible for paying these fees and we’re unable to waive or refund them, even if the order is returned back to us.Once we received and confirmed your returned item, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.If you have any problems regarding the refund process, please contact us. service@roymall.com or Whatsapp: +8619359849471
Features: 1.【Intelligent Auto-Identification System】: The controller automatically detects and adapts to the system voltage (12/ 24/36/48V), eliminating the manual selection and ensuring high compatibility of various photovoltaic setups. This intelligent feature simplifies installation and operation.
2.【High-Efficiency MTTP Technology】: Utilizing MPPT technology, the controller optimizes the power output from solar panels by dynamically adjusting to the operating point that yields the highest energy conversion efficiency, ensuring efficient and intelligent charging of your batteries.
3.【LCD Display】: The controller features a backlit LCD display that shows critical system information, including operation mode, battery working status, solar working status, output load status, parameters, etc. This information aids in maintenance and troubleshooting and ensures the system operates reliably over the long term. It also support time display function.
4.【7 Operation Modes 】: Equipped with seven operation modes, including charging mode, light control mode, light control & delay mode, universal control mode, manual control mode, timer control mode, and test mode (for factory test use only). You can adjust according to your demands easily.
5.【Versatile USB Charging & Customizable Parameters】: Users can adjust various settings to customize the controller"s performance according to specific requirements. Supports time setting and mode adjustment, enhancing user interaction efficiency. It provides a convenient USB 5V output for charging mobilephone and other USB devices. More convenient to use.
Tips:For questions about your order, place of delivery, product discount, taxation, delivery time, warranty, shipping, payment, exchange rate, and other questions unrelated to the product, please contact customer service.
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A part of the QA has been auto-translated.
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Q:
This stated as an MPPT controller.
This stated as an MPPT controller.<br/>1) Please send picture of internal pcb to confirm the design<br/>2) are the 0s /negatives of the battery and solar input electrically connected together