Power Supplies
Looking for a dependable power supply for architectural LED lighting, illuminated signage, or demanding industrial installations? Our Power Supplies category delivers a comprehensive inventory spanning DC drivers for LED, voltage converters, DIN-rail power units, and toroidal transformers to smart chargers and photovoltaic modules. We rely on industry-proven brands such as Mean Well, AZO Digital, Green Cell, and Qoltec, ensuring superior longevity and rock-solid performance. Our technical team is ready to assist you with exact load dimensioning and wiring schematics. With well-stocked central warehousing in Zlín and our own dedicated transport across both the Czech Republic and Slovakia, we guarantee fast, dependable delivery directly to your workshop or job site.
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Switched power suplies MEAN WELL with constant voltage and constant current. MEAN WELL's power supplies can be controlled via PWM, 0 (1) -10V, resistive, DALI, or SMART and can be programmed. Info for each series. Datasheets and certificates for each type are can be seen at MEANWELL.com.
You can also download MEAN WELL catalogs.
Choosing a resource is very important. For long-term operation, it is necessary to select a stabilized power supply with DC or AC voltage of 12V or 24V with a maximum tolerance of ± 1% and a sufficiently high output power and in a suitable design.
In general, we maintain a 20% power reserve above the installed power of the LED system. Switched power supplies with suitable parameters are recommended - with the required output voltage and current. Resource location always follows the manufacturer's rules, it is necessary to select sources with the correct type of IP protection for both outdoor and indoor applications. For each source, it is necessary to provide sufficient cooling and, when installing multiple sources, keep the minimum spacing between the sources. Multiple sources can not usually be plugged into one circuit, for which special sources are determined.
When installing power supplies in advertising panels and other systems, sufficient ventilation must be provided to avoid excessive overheating. Heat accumulation in small areas, from solar radiation or resource overload can very quickly destroy the whole system.
The power output calculation depends on the type of LED strip or LED module, for each type of LED strip the power / meter is given. After selecting the length of your LED strip, you simply multiply the input × the length of the LED strip x coefficient 1,2. Example: If you buy 3 meters of tape with a power consumption of 7.2W / meter, the power of 3 meters is 21.6W, including a safety factor of 1.2 then 25.92W. In our offer we have a 30W source that will be suitable for this length. To choose a suitable source, please feel free to contact our sales department at sales@dencop.cz.
Voltage pulse power suplies are designed to power all LED modules in voltage mode, including LED strips and similar components. They come in an IP68 version in an AL or a plastic case, as well as a plug-in design reminiscent of a mobile phone charger, etc. These sources supply a constant voltage to the electrical circuit. When the source is overloaded, the secondary circuit turns off their electronic protection.
OUR TIP: We recommend using fusible fuses on the secondary side of sources.
FAQ – Frequently Asked Questions
How to choose the right power supply based on wattage?
Choose a power supply with approximately a 20% reserve above the total power consumption of the connected appliances so that it is not continuously loaded to its maximum. For LED setups that run for many hours a day, this significantly extends the lifespan of the entire installation. If you are unsure, we will gladly help you with the calculation.
What is the difference between a constant voltage and a constant current power supply?
A constant voltage power supply maintains a steady output voltage (most commonly 12 V or 24 V) and is suitable for LED strips and LED modules. Conversely, a constant current power supply holds a steady current and is primarily used for high-power LEDs. The correct type always derives from the requirements of the specific fixture.
Why choose branded Mean Well power supplies?
Mean Well power supplies rank among the global elite thanks to high efficiency, overload and short-circuit protections, and a long warranty. Investing in a quality power supply pays off especially in professional installations where trouble-free operation is crucial. We offer a wide range of power outputs and various IP ratings in our assortment. Proper wiring is covered in detail in our article Mean-Well Power Supplies and Their Proper Wiring.
Can you help with selection and wiring?
Yes, thanks to more than 30 years of experience, we will help you choose a suitable power supply and design its correct wiring. We provide advice on IP protection according to the environment, cable sizing, and necessary protections. Contact us by phone or email, and we will sort everything out together.
