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: +447549870296
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: +447549870296
Videos for similar product
Loading product videos...
❮
❯
Products related to this item
Loading related products...
❮
❯
Descriptions: Auto start voltage will be pulled down to 7V or less, and engine will at high speed when the voltage up to 15V or higher. It is hard to work for 12V electrical equipment, this automatic buck boost module can solve this problem, regardless of the input voltage is 5V or 12V or 32V, the output can be stabilized at 12V.
Built-in 4A efficient MOSFET switches enable efficiency up to 94%; (LM2577 current is 3A)
High switching frequency 400KHz, the ripple is smaller, dimension is smaller . (LM2577 frequency only 50KHz)
Applications:
Car regulator, solar photovoltaic, wind power and other applications of voltage instability .
Specifications:
Model Specification: DSN6000AUD Automatic Buck module
Module Properties: Non- isolated boost (BOOST)
Rectification: Non- Synchronous Rectification
Input Range: 3.8V - 32V
Output Range: 1.25V - 35V
Input Current: 3A ( max ) , no-load 18mA (5V input , 8V output , no-load is less than 18mA. Higher the voltage, the greater the load current. )
Conversion efficiency: <94% ( the greater the pressure , the lower the efficiency )
Switching frequency: 400KHz
Output Ripple: 50mV ( the higher the voltage, the greater the current, the greater the ripple )
Load Regulation: ± 0.5%
Voltage Regulation: ± 0.5%
Operating Temperature: -40°C to +85°C
Dimensions: 48 x 25 x 14mm ( L x W x H )
Package included: 1 x DC-DC Boost Buck Adjustable Step Up Step Down Automatic Converter XL6009 Module
I am happy with the units, all working, despite the small chances, based on the "law of total probability", they arrived without damage, small eggs and bricks in the same bag without protection is something very peculiar, the assembly of the components is not 100% aligned . The output voltage remained constant even with extreme variation in the input voltage, below 5v is too extreme, without load or with varying loads, in multimeters aneng and hikari the voltage remained stable, varying only at the voltage input, according to load # Estou feliz com as unidades, todas funcionando, apesar das pequenas chances, baseado na "lei da probabilidade total", chegaram sem danos, pequenos ovos e tijolos na mesma sacola sem proteção é algo muito peculiar, a montagem dos componentes não é 100% alinhada. A tensão de saída se manteve constante mesmo com variação extrema na tensão de entrada, abaixo de 5v é extremo demais, sem carga ou com cargas variadas, nos multimetros aneng e hikari a tensão permaneceu estável, variando apenas na entrada de tensão, de acordo com a carga.
In general, it is good, but if the input voltage drops below 3.5V, the output voltage will be triggered up to the maximum output, around 30V.
Be careful with that "detail" !!!
Roymall C.o.
Free Gift
Shipping Policy
Return Policy
Coupon Code
Direct purchase from the factory 
Electronic Components & Supplies
Module Board
Power Supply Module
