* 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.
Livraison standard gratuite pour les commandes de plus de 9,9 $
Politique de retour
Les articles retournés seront acceptés dans les 40 jours suivant la réception des marchandises. Les articles personnalisés ne peuvent pas être retournés ou échangés. Les articles achetés avec une carte-cadeau électronique ne peuvent être échangés que; les remboursements ne sont pas applicables.
Cadeau gratuit
Bienvenue sur Roymall, votre site Web professionnel pour l'achat de cadeaux de grand magasin premium. Nous apprécions et valorisons grandement votre soutien, et nous voulons exprimer notre gratitude en ajoutant une touche supplémentaire d'excitation à vos achats. Lorsque vous magasinez avec nous, vous profitez non seulement de produits de haute qualité qui améliorent votre style de vie, mais vous recevrez également un cadeau gratuit exclusif avec chaque commande que vous passez. Prêt à explorer notre collection et à trouver vos cadeaux parfaits ? Parcourez notre sélection d'articles de grand magasin premium, passez votre commande et attendez avec impatience l'excitation de recevoir votre cadeau gratuit avec votre achat.
Politique d'expédition
Nous nous efforcerons de vous livrer les articles après réception de vos commandes et de nous assurer qu'ils arrivent en toute sécurité. Les détails de livraison seront fournis dans votre email de confirmation.Dans la plupart des cas, les commandes sont traitées dans les 2 jours. Dans des circonstances spéciales, cela peut être retardé comme suit : Lorsque vous passez une commande le samedi, le dimanche ou un jour férié, cela sera retardé de 2 jours.Normalement, il faut 5 à 7 jours ouvrables (du lundi au vendredi) sans être affecté par un retard de vol ou d'autres facteurs environnementaux.Parce que notre service d'expédition est mondial, les délais de livraison dépendront de votre emplacement, donc cela peut prendre quelques jours et veuillez patienter si vous êtes dans des districts ou des pays éloignés.
1. Politique de retour et d'échange
Nous n'acceptons que les articles achetés sur roymall.com. Si vous achetez auprès de nos distributeurs locaux ou d'autres détaillants, vous ne pouvez pas les retourner chez nous.Les articles en vente finale ou les cadeaux gratuits ne sont pas acceptés pour un retour.Pour être éligible à un retour, votre article doit être inutilisé et dans le même état que celui dans lequel vous l'avez reçu. Il doit également être dans son emballage d'origine.Après avoir reçu les instructions de retour de notre part, veuillez emballer vos articles retournés et déposer votre colis à la poste locale ou à un autre transporteur. Nous traiterons votre retour ou échange d'article dans les 3 à 5 jours ouvrables après réception. Le remboursement sera traité et crédité automatiquement sur votre méthode de paiement d'origine.Aucun retour ou échange ne peut être accepté si le produit a été produit sur mesure, y compris la taille personnalisée, la couleur personnalisée ou l'impression personnalisée.Besoin de plus d'aide, veuillez nous contacter. service@roymall.com ou Whatsapp: +447549870296
2.Politique de remboursement
Vous recevrez un remboursement intégral ou un crédit magasin de 100% après réception et vérification du colis retourné. Le remboursement sera traité et crédité automatiquement sur votre méthode de paiement d'origine.Veuillez noter que les frais d'expédition et tous les droits ou frais ne sont pas remboursables. Les frais d'expédition supplémentaires ne sont pas remboursables une fois le colis expédié. Vous êtes responsable du paiement de ces frais et nous ne pouvons pas les annuler ou les rembourser, même si la commande nous est retournée.Une fois que nous avons reçu et confirmé votre article retourné, nous vous enverrons un email pour vous informer que nous avons reçu votre article retourné. Nous vous informerons également de l'approbation ou du rejet de votre remboursement.Si vous avez des problèmes concernant le processus de remboursement, veuillez nous contacter. service@roymall.com ou Whatsapp: +447549870296
Features:
- Fixed turn lamp current is 0.1 times the current value ( Used to identify whether the battery is fully charged When charging).
- Made from a dedicated benchmark IC and high-precision current sensing resistor, proving a more stable constant current, (when 20°C to 100°C constant current 1A, temperature drift less than 1%). Particularly suitable for LED.
- High output current, the max output current can reach 8A.
- Four high frequency capacitance, can lower output ripple, enhance the work stabilization.
- Double heat sink design. MOS schottky diode independent heat sink,which heat dissipation is good,and won't affect each other.
- Using large size Sendust Core and double pure copper wiring, improve working efficiency, reduce fever.
- 3296 multiturn potentiometer,high accuracy voltage and current regulation, good stability.
- Double color lamp, working condition be clear at a glance
- Voltage and current are adjustable,wich effect is good.
- Output Voltage: (1) DC 1.2-28V continuously adjustable. (2) Fixed output:Choose between 0.8v-28v
- Output Current: 8A (when power tube"s temperature exceeds 65 degrees, please add cooling fan)
- Constant Current Range: 0.2-8A (Adjustable)
- Turn Lamp Current: Constant current value * (0.1), turn the lamp current and constant value linkage, such as constant current value is 3A, turn the lamp current is set to a constant current is 0.1 times (0.1 * 3A = 0.3A)
- Output Short Circuit Protection: Yes, constant current
- Input Reverse Polarity Protection: None
- Output Prevent Backflow: None
- Wiring: Terminal
- No-Load Current: Typical 20mA (24V switch 12V)
- Load Regulation: ± 1% (Constant)
- Voltage Regulation: ± 1%
- Dynamic ResponseSpeed: 5% 200uS
- Potentiometer Adjustment Direction: clockwise (increase) , counterclockwise (decrease), the potentiometer(CV) closed to the input voltage is used to regulate voltage, the potentiometer(CC) closed to output voltage is used to regulate current (CC)
- Operating Temperature: Industrial grade (-40 °C to +85 °C) (please note the actual use of the power tube temperature , high temperature heat strengthened)
- Indicator: dual color indicator, charging indicator light is red, the green light means fully charged (No load is green)
- Size: Approx. 65 x 47 x 23.5mm/2.56 x 1.85 x 0.93""
- Precision of Constant Current and Temperature: On the actual test, the module temperature from 25 degrees to 60 degrees, the constant current value change is less than 5% (5A constant current value)
- Output Short Circuit Protection: Yes,Constant current (the current setting constant current value)
I love these supplies. I used them to build a variable DC supply for my bench. I changed the pots for panel mount 10 turn pots and fed these supplies(3) with a high current 24V supply. Most of the parts for this project were source from banggood including the laser to engrave the front panels.
I love these supplies. I used them to build a variable DC supply for my bench. I changed the pots for panel mount 10 turn pots and fed these supplies(3) with a high current 24V supply. Most of the parts for this project were source from banggood including the laser to engrave the front panels.
I love these supplies. I used them to build a variable DC supply for my bench. I changed the pots for panel mount 10 turn pots and fed these supplies(3) with a high current 24V supply. Most of the parts for this project were source from banggood including the laser to engrave the front panels.
Incrivelmente pequeno, mas muito bom! A encomenda chegou sem atrasos e sem problemas, nada danificado e bem embalado. Já testei e fiquei muito contente, coloquei na entrada 22 Volts DC retirados da minha fonte e foi regulando a saída e tirei várias voltagens como podem ver nas fotos. Por isso recomendo, não aqueceu e por fim digo que é um bom regulador de DC para DC. Temos que ter atenção em não ultrapassar a voltagem máxima permitida pelo fabricante.
Obrigado Banggood
Incredibly small but very good! Order arrived without delay and without problems, nothing damaged and well packaged. I have already tested and was very pleased, I put in the entrance 22 Volts DC taken from my source and was regulating the output and took several voltages as you can see in the photos. So I recommend it, it didn't heat up and finally I say it's a good regulator from DC to DC. We must be careful not to exceed the maximum voltage allowed by the manufacturer.
Thank you Banggood
Incredibly small but very good! Order arrived without delay and without problems, nothing damaged and well packaged. I have already tested and was very pleased, I put in the entrance 22 Volts DC taken from my source and was regulating the output and took several voltages as you can see in the photos. So I recommend it, it didn't heat up and finally I say it's a good regulator from DC to DC. We must be careful not to exceed the maximum voltage allowed by the manufacturer.
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.
showing 1-28 of 28|
Show Original
A part of the QA has been auto-translated.
0
Q:
Can I use it to increase the voltage from 12 v to 18 v?
posso utilizzarlo per aumentare la tensione da 12 v a 18 v?
I think no, because this coverter is not designed to made the solar panel to work in its maximum power point (MPP).
Solar panel hasn't an its own voltage, it depends on the point you made it working, with the load you connect to it.
Solar panel can work without problems from open circuit (current is zero) to short circuit (where current is maximum but voltage is zero): in both cases power output is zero because is the product of voltage and current.
Between these two extremes there's a desired point where power output is the maximum, changing continously with solar radiation and temperature, so needing an electronic able to do a tracking.
In simpler battery plants, generally is battery that imposes the voltage, and the solar panel model is chosen accordingly to this voltage to have a MPP close to this voltage: it's not a tracker, but it works.
I think no, because this coverter is not designed to made the solar panel to work in its maximum power point (MPP).
Solar panel hasn't an its own voltage, it depends on the point you made it working, with the load you connect to it.
Solar panel can work without problems from open circuit (current is zero) to short circuit (where current is maximum but voltage is zero): in both cases power output is zero because is the product of voltage and current.
Between these two extremes there's a desired point where power output is the maximum, changing continously with solar radiation and temperature, so needing an electronic able to do a tracking.
In simpler battery plants, generally is battery that imposes the voltage, and the solar panel model is chosen accordingly to this voltage to have a MPP close to this voltage: it's not a tracker, but it works.
Answered by aquarius on 14/12/2020Helpful (0)
0
Q:
I want to bring the LED diode on the outside.
What kind of diode can I use, what features? (the diode has three terminals). Thank you.
I want to bring the LED diode on the outside.
What kind of diode can I use, what features? (the diode has three terminals). Thank you.
si el diodo LED tiene tres termina debe ser de varios colores debes identifica el negativo y los otros dos terminales son positivos . también debes colocar una resistencia teniendo en cuenta la tensión máxima de trabajo ; te sugiero estudies la ley de ohm (no lo coloque sin resistencia porque lo dañarás)
If the LED diode has three ends must be of several colors you must identify the negative and the other two terminals are positive. you must also place a resistance taking into account the maximum working voltage; I suggest you study the law of ohm (do not place it without resistance because you will damage it)
Answered by Manuel Guillermo Herrera Gamero on 11/10/2021Helpful (0)
0
Q:
I buyed one and waiting for it. Can be used also as a booster DC DC converter? I need it for 12V to 24V booster...
I buyed one and waiting for it. Can be used also as a booster DC DC converter? I need it for 12V to 24V booster...
Trimmers on PCB are 10 kOhms. Replacing them for a beanch power supply, I recommend splitting the voltage one into two potentiometers in series: one 10 kOhm for coarse and one 1 kOhm for fine regulation.
Trimmers on PCB are 10 kOhms. Replacing them for a beanch power supply, I recommend splitting the voltage one into two potentiometers in series: one 10 kOhm for coarse and one 1 kOhm for fine regulation.
Answered by aquarius on 02/01/2021Helpful (0)
0
Q:
Kann ich das Gerät an den Hausstrom anschließen welcher 240V hat?
Kann ich das Gerät an den Hausstrom anschließen welcher 240V hat?
I think not. You can't be sure that the 180 Volts equally divide themselves among the modules' inputs (in series), furthermore modules' insulation is low.It is a simple circuit made for standalone operation, and in general commonly used DC-DC converters have input voltages limited to less than 100 Vdc.
I think not. You can't be sure that the 180 Volts equally divide themselves among the modules' inputs (in series), furthermore modules' insulation is low.It is a simple circuit made for standalone operation, and in general commonly used DC-DC converters have input voltages limited to less than 100 Vdc.
Answered by aquarius on 07/10/2020Helpful (0)
0
Q:
hola este circuito me permite amplificar el voltaje de entrada?
hola este circuito me permite amplificar el voltaje de entrada?
The copper-colored screws on the two blue potentiometers can be turned left and right with a screwdriver to adjust the current and voltage.
The copper-colored screws on the two blue potentiometers can be turned left and right with a screwdriver to adjust the current and voltage.
Answered by Bombosity on 19/10/2021Helpful (0)
0
Q:
Hi, I want to step down from a 20 volt Li-ion battery, to 12 volt and shut of when voltage of battery reaches 16 volt. This to protect the battery. I want to use my old 12 voltage tools with a adapter and your product. Can it do that? Yours sincerely Jan
Hi, I want to step down from a 20 volt Li-ion battery, to 12 volt and shut of when voltage of battery reaches 16 volt. This to protect the battery. I want to use my old 12 voltage tools with a adapter and your product. Can it do that? Yours sincerely Jan
Нет,в вашем случае с падением напряжения на аккумуляторе будет проблематично получить стабильные 12вольт, например в моем случае этот продукт использую в связке с 19.5 вольтовым блоком питания от ноута Dell и получаю на выходе 12 вольт для работы моих устройств.
No, in your case with the voltage drop on the battery it will be problematic to get a stable 12V, for example in my case this product is used in conjunction with a 19.5 Volt power supply from the Dell laptop and receive on output 12V to operate my devices.
Answered by BarbacitoLoco on 01/09/2021Helpful (0)
0
Q:
if output is 8A (max) at 24v does it mean it can handle 12V at 16AjQuery111307198401928197584_1622503209362 bc it does not say max input (A)
if output is 8A (max) at 24v does it mean it can handle 12V at 16AjQuery111307198401928197584_1622503209362 bc it does not say max input (A)
- Potentiometer Adjustment Direction: clockwise (increase) , counterclockwise (decrease), the potentiometer(CV) closed to the input voltage is used to regulate voltage, the potentiometer(CC) closed to output voltage is used to regulate current (CC)
- Potentiometer Adjustment Direction: clockwise (increase) , counterclockwise (decrease), the potentiometer(CV) closed to the input voltage is used to regulate voltage, the potentiometer(CC) closed to output voltage is used to regulate current (CC)