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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.
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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
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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
Description: Low Voltage DC 1.8V 3V 5V 6V 12V 2A Motor Speed Controller PWM 1803B
Specification: Input supply voltage: 1.8V-15VDC The max output power: 30W The max continuous output current :2A Duty Cycle adjustable: 0%-100% Size: 32*32*15mm
Features: This Brand New 1803B DC Motor Speed Controller allows controlling the direction of a DC the motor using a Pulse-Width-Modulated (PWM) DC voltage with a Duty Cycle fully the product adjust from 0%-100%. With a self-recovery fuse 2A and a Power-On LED light. Enable to provide a continuous current of 2A to your DC motor or other DC load.
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.
Can it be used for dimming horticulture LEDs, whith Const.Current LED power supply, which for dimming requires PW modulated signal 0-5 VDC, if I provide 5 VDC input to this device?
Can it be used for dimming horticulture LEDs, whith Const.Current LED power supply, which for dimming requires PW modulated signal 0-5 VDC, if I provide 5 VDC input to this device?
Hello Regarding ID: 961010
I want to understand more about this product.
1) Does the knob is for changing the output PWM duty from 0-100%?
2) What is the output PWM voltage max?
3) What is the PWM frequency?
4) If I supply 15VDC input the PWM voltage will be 15V? Regards
HM
Hello Regarding ID: 961010
I want to understand more about this product.
1) Does the knob is for changing the output PWM duty from 0-100%?
2) What is the output PWM voltage max?
3) What is the PWM frequency?
4) If I supply 15VDC input the PWM voltage will be 15V? Regards
HM
1) Yes,the knob is for changing the output PWM duty from 0-100%? 2) What is the output PWM voltage max is 15V 3) PWM frequency IS adjustable. 4) If you supply 15VDC input,the PWM voltage changes with current.
1) Yes,the knob is for changing the output PWM duty from 0-100%? 2) What is the output PWM voltage max is 15V 3) PWM frequency IS adjustable. 4) If you supply 15VDC input,the PWM voltage changes with current.
Answered by wujiahui on 17/06/2019Helpful (0)
0
Q:
if I buy the 6v option is the power range from 0v-6v?
if I buy the 6v option is the power range from 0v-6v?