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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
Features: This controller uses novel bi-directional high-power SCR.It can be very convenient adjust the current up to 25A, and solve the over current problem of the heating wire.The output voltage is adjusted anywhere between 0V ~ 220V for use with electrical appliances.It can use to such as electric stove, water heater tune thermal, lighting dimmer, small motor speed, electric iron thermostat, and achieve dimming, thermostats, pressure regulator effect.
Attention:
Load does not exceed the maximum power, otherwise it will burn module and electrical appliances;use the resistive load as far as possible; reduce inductive and capacitive load power greatly. (it is best to leave more than half of them) Specifications:
Working Voltage: AC 220VMaximum Power: 4000W (connected resistive load)Voltage Regulation:AC 0-220V,Start from AC 10VDimensions: 89(L) x 59(W) x38(H)MM/3.35x2.56x1.5"Protection: Anti-spike, Surge, RC absorption (EOC)
Using Method:
Step 1: Adjustable Power Supply Board.
Step 2: connect this device with lamp or home appliance or electric circuit.
Step 3: then rotate the knob for dimming, speed, voltage, temperature control. Package includes: 1 x High-power 4000W Voltage Regulator
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.
0
Q:
Can this be used to control the speed of a 120 VAC fan ?.
Can this be used to control the speed of a 120 VAC fan ?.
NO!!!! You will have BIG problems if you do. In short. You need a LOW Voltage current source on that wire. Normally used is a "high" current transformer - by that I mean one that can deliver the needed Amperage - without burning out the transformer.
NO!!!! You will have BIG problems if you do. In short. You need a LOW Voltage current source on that wire. Normally used is a "high" current transformer - by that I mean one that can deliver the needed Amperage - without burning out the transformer.
Answered by Hopentrust on 13/12/2021Helpful (0)
0
Q:
Hi the item does not work, adjusting the pot does nothing, the output voltage is the same as the input voltage
Hi the item does not work, adjusting the pot does nothing, the output voltage is the same as the input voltage
Let's say 210-240V AC should this device handle without problems. Can't tell if it works with 110V as well.
Be aware: motors on the output side will loose lots of torque in lower speed
Let's say 210-240V AC should this device handle without problems. Can't tell if it works with 110V as well.
Be aware: motors on the output side will loose lots of torque in lower speed
Answered by BG551754615 on 29/06/2020Helpful (0)
0
Q:
Will warrenty apply and will the product be safe to use in the EU (230 VAC)? Note that this could be 230VAC + 10%? Can product withstand over voltage on inputs, like spikes?
Will warrenty apply and will the product be safe to use in the EU (230 VAC)? Note that this could be 230VAC + 10%? Can product withstand over voltage on inputs, like spikes?
Yes, of course it can work with 230V. As for the spikes, depends how high they are.
Yes, of course it can work with 230V. As for the spikes, depends how high they are.
Answered by JoeGP on 12/11/2020Helpful (0)
0
Q:
Hi!
Is it possible to use this regulator in 127V AC to power two independant circuits (Two regulators): the first one with a series of LED lamps in a paralel circuit with 10V AC maximum on each one of it lamp. The second in the same configuration but now the voltage shoud be 26V AC maximum on one each LED lamp.
Thank you for your attention.
Hi!
Is it possible to use this regulator in 127V AC to power two independant circuits (Two regulators): the first one with a series of LED lamps in a paralel circuit with 10V AC maximum on each one of it lamp. The second in the same configuration but now the voltage shoud be 26V AC maximum on one each LED lamp.
Thank you for your attention.
TheSCR based circuits are definitely NOT intended for LED's, for that please get the proper LED power supply, some are dimmamble and with those the SCR based dimmer will also work.
You can use it to power a classical bulb(filament), heating element, so resistive loads or to limit the voltage for power tools which have a series-winding stator (older vacuum's, older hand drilling machines etc), but nothing with an AC (asyncronous) motor.
TheSCR based circuits are definitely NOT intended for LED's, for that please get the proper LED power supply, some are dimmamble and with those the SCR based dimmer will also work.
You can use it to power a classical bulb(filament), heating element, so resistive loads or to limit the voltage for power tools which have a series-winding stator (older vacuum's, older hand drilling machines etc), but nothing with an AC (asyncronous) motor.
nou regulator had the same Trouble .pin1is connected with pin 4 .
is this right or wrong and if IT is wrong can i break this connection of hoe van i get IT
work properly.
nou regulator had the same Trouble .pin1is connected with pin 4 .
is this right or wrong and if IT is wrong can i break this connection of hoe van i get IT
work properly.
Why can't it fill up psychologically like your little toy, clamp to make a connection
He's locked up. You sell stuff to Turkey, you don't write Turkish, you don't have instructions to use it. He's locked up.
Neden mini minnacık oyuncan gibi psikolojik doyurmuyor, baglantı yapmak için klemens
İçerde kalmış. Türkiye ye malzeme satıyorsunuz Türkçe yazmıyorsunuz kullanma talimatı yok. İçerde kalmış.
What is the correct way to wire thisnif the pin designations are incorrect? I received mine but it doesnt adjust power at all when teuning the knob. I just get full power constantly.
What is the correct way to wire thisnif the pin designations are incorrect? I received mine but it doesnt adjust power at all when teuning the knob. I just get full power constantly.
I think you can use it,however maybe not work properly if you want too low speed.
I think you can use it,however maybe not work properly if you want too low speed.
Answered by Lordcat21 on 25/09/2020Helpful (0)
0
Q:
good day. the regulator is marked input. N 1. L 2
output. L 3. N 4. if it is conected like this it only gives 228v output and does not regulate the voltage
good day. the regulator is marked input. N 1. L 2
output. L 3. N 4. if it is conected like this it only gives 228v output and does not regulate the voltage