SK40/SK90 Buck-boost Converter CC CV Step Down Module LCD Adjustable Regulated Stabilized Voltage Power Supply
20
Direct purchase from the factory 
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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.Patakaran sa Pagpapadala
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. Patakaran sa Pagbalik at Pagpapalit
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.Patakaran sa Refund
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
Feature:nn1. The LCD display panel is immersed in gold technology to prevent oxidation and poor contact, and prevent incomplete display after long-term use.n2. Independent silicone buttons to set the voltage or current, one key to enter, one key to exit, fast and concise, rejecting tediousnessn3. The upper and lower boards have independent architecture and independent MCU. The LCD or color screen display board can be replaced at will, and the power supply board can also be used independently.n4. The upgraded silicone button material is soft, comfortable to the touch, has an excellent feel, is durable and has a longer service life.n5. Humanized design, reserved 5V fan interface, customers can add their own fans to cool down, supports fans within 5V150mAnnProduct parameters: n
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| Product model | nSK40 | nSK90 | n
| Product name | nCNC DC voltage buck-boost power supply | n|
| Input voltage | n6-36.00V | n|
| Output voltage | n0.5-36.00V | n|
| Output current | n0-4.5A | n0-5A | n
| Output power | n40W | n90W | n
| Voltage resolution | n0.01V | n|
| Voltage accuracy | nu00b10.3%+3 words (Calibratable) | n|
| Output current accuracy | nu00b10.5%+3 words (Calibratable) | n|
| Current resolution | n0.001 A | n|
| Data group storage | n11 groups | n|
| Silicon rubber keypads | n5 | n|
| Buzzer | nYes | n|
| Soft | nYes | n|
| Screen size | nUpgraded 1.8-inch large screen, 36 * 29mm visible range | n|
| Conversion efficiency | nAbout 88% | n|
| Product size | n83x48x29.4mm (Height does not include rotary encoder) | n|
| Product weight | nNet weight of product: 103g Weight with packaging: 123g | n|
| Under voltage protect (LUP) | n5.5-35V adjustable, factory default value of 5.5V | n|
| Output overvoltage protection (OUP) | n0.5-37V adjustable, factory default value 37V | n|
| Output overcurrent protection (OCP) | n0.001 -4.6A adjustable, factory default value 4.6A | n0.001 -5.2A adjustable, factory default value 5.2A | n
| Output overpower protection (OPP) | n0.01-41 W adjustable, factory default value 41W | n0.01-91 W adjustable, factory default value 91W | n
| Over temperature protection (OTP) | n30-99 u2103 adjustable, factory default value of 90 u2103 | n|
| Timeout protection (OHP) | n1 -99 hours and 59 minutes, factory default off | n|
| Overcapacity protection (OAH) | n0.001-9999Ah, Factory default off | n|
| Superenergy protection (OPH) | n0.001-4000KWh, Factory default off | n|
| Output anti backflow | nYES | n|
| Input anti reverse connection | nYES | n|
Package includes:
n1 x Adjustable regulated power supply
