Single-Output LED Sign Power Supplies for Commercial Signage
FAHOLD single-output LED sign power supplies provide regulated constant-voltage power for channel letters, illuminated signs, light boxes, display cabinets and LED strip systems.
The 31-product range includes slim L2-E models from 20W to 150W and isolated L3 models from 100W to 1200W. Available outputs range from 12V to 48V DC, depending on the series and model.
Compare wattage, output voltage, AC input range and IP rating to find the right LED power supply for your signage project. Contact FAHOLD for datasheets, sample orders and OEM or bulk quotations.
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Single-Output LED Power Supplies for Commercial Signage
FAHOLD single-output LED sign power supplies are designed for sign manufacturers, lighting OEMs, display manufacturers and commercial project suppliers that need regulated constant-voltage power for LED loads.
A single-output power supply provides one regulated DC output for a compatible LED load. This architecture is suitable when the connected lighting circuit can be supplied through one output rather than being divided across multiple independently rated output channels.
The FAHOLD single-output range includes two main platforms:
- L2-E Series: Slim 12V and 24V constant-voltage LED power supplies for compact signage, channel letters and cabinet lighting.
- L3 Series: Isolated single-output LED power supplies for higher-power signage, advertising lighting and other constant-voltage applications.
Compare the two series below to identify the appropriate starting point for your project.
Compare L2-E and L3 LED Sign Power Supplies
| Specification | L2-E Series | L3 Series |
|---|---|---|
| Rated power range | 20Wā150W | 100Wā1200W |
| DC output voltage | 12V / 24V | 12V / 24V / 36V / 48V |
| AC input | 120ā277Vac | 100ā277Vac or 120ā277Vac, depending on model |
| Output architecture | Slim, single-output constant voltage | Isolated, single-output constant voltage |
| Dimming | Non-dimmable | Non-dimmable operating platform |
| Ingress protection | IP65 / IP67 options, model-dependent | IP67 / IP68 options, model-dependent |
| Primary applications | Channel letters, compact signs, cabinets | High-power signs, advertising lighting, LED strips |
The input range, rated output, current capacity, enclosure rating and certifications must be confirmed against the exact model datasheet.
Explore the L2-E Slim LED Sign Power Supply Series or the L3 High-Power LED Sign Power Supply Series for complete specifications.
L2-E Slim LED Power Supplies for Channel Letters and Cabinets
The FAHOLD L2-E Series is designed for signage and display applications where installation space is limited and a single regulated output is preferred.
The product range includes 12V and 24V models in 20W, 30W, 36W, 60W, 100W and 150W power classes. Listed models use 120ā277Vac input and a non-dimmable constant-voltage architecture.
Example models include:
- L2-020N-012-E ā 20W, 12V: 1.66A output, 120ā277Vac input and a compact housing for low-load signage and cabinet lighting.
- L2-100N-012-E ā 100W, 12V: 8A output for compatible higher-load 12V signage applications.
These examples illustrate different power levels within the L2-E platform. The correct model should be selected according to the actual LED load, current requirement and installation dimensions.
Typical applications include illuminated channel letters, cabinet signs, display lighting and LED strip systems where the power supply must fit into a narrow space.
Review the exact product specification for Class 2 status and IP65 or IP67 protection options. These ratings should not be assumed to apply identically to every L2-E configuration.
L3 Isolated LED Power Supplies for Higher-Power Signage
The FAHOLD L3 Series is intended for projects requiring higher-output, isolated, single-output constant-voltage power.
The series covers 100Wā1200W product ratings and provides 12V, 24V, 36V and 48V DC options, depending on the model. Input-voltage ranges and enclosure ratings also vary by SKU.
Example models include:
- L3-100N-012 ā 100W, 12V: 8A output with a 100ā277Vac rated input.
- L3-120N-012 ā 120W, 12V: 10A output for compatible 12V constant-voltage loads.
Higher-power L3 models are relevant to larger illuminated signs, advertising displays and LED strip systems requiring greater output capacity.
The L3 platform uses an isolated constant-voltage architecture and is non-dimmable during normal operation. Offline programming, where supported, should not be confused with dimming capability.
For outdoor or wet-location projects, verify the exact model's IP67 or IP68 rating, installation conditions and applicable safety documentation before specifying the product.
How to Select the Correct Single-Output LED Sign Power Supply
1. Match the DC Output Voltage
The power supply output must match the rated voltage of the connected LED modules or strips.
L2-E models provide 12V or 24V DC output. L3 models also include 36V and 48V options.
Do not select a 24V power supply for a 12V LED load simply because the total wattage appears suitable.
2. Calculate the Required Output Power
Estimate the total power consumption of the connected LED load and check the manufacturer's recommended operating margin.
For constant-voltage systems, confirm both the total wattage and the current required by the connected circuit. The power supply must remain within its specified output-current and thermal limits.
3. Verify the AC Input Range
A power supply with 120ā277Vac input is not automatically interchangeable with every product described as 100ā277Vac.
Confirm the actual building supply voltage and select a model whose rated input range covers the intended installation.
4. Check the Enclosure and IP Rating
For indoor signage and cabinet lighting, installation space and enclosure dimensions may be the primary constraints.
For exposed signage or wet-location applications, verify the power supply's specific ingress-protection rating, wiring arrangement and environmental suitability. An IP rating alone does not establish that the complete sign installation is suitable for every outdoor environment.
5. Confirm Dimming and Certification Requirements
The listed L2-E and L3 platforms are non-dimmable. If the project requires TRIAC, ELV, MLV, 0ā10V or PWM dimming, specify the required control interface before requesting a quotation.
Where a project requires UL or cULus certification, Class 2 output or other regulatory documentation, confirm the applicable status for the exact model and configuration.
Single-Output Power Supplies for Different Signage Applications
Channel Letter Signs
Slim L2-E models can be considered for compatible 12V or 24V channel-letter systems where installation space is limited and one regulated output is sufficient.
Illuminated Light Boxes
Select the output voltage and rated power according to the LED modules, circuit layout and total electrical load. Where multiple independently rated output circuits are required, compare the Class 2 Multi-Channel LED Power Supply range.
Display Cabinets and Retail Signs
Compact single-output models are suitable candidates for compatible cabinet and display lighting installations where housing dimensions and input-voltage requirements match the project.
High-Power Signage and Advertising Displays
The L3 Series provides higher-power isolated constant-voltage options for larger LED loads. Select the actual output voltage, rated current, AC input range and enclosure rating by model.
For a broader view of application requirements, visit FAHOLD Sign Lighting Solutions.
OEM and Bulk Purchasing Support
FAHOLD supports sign manufacturers, lighting brands and commercial project suppliers with product selection, technical documentation, sample requests and bulk quotations.
When requesting a quotation, provide:
- Required output voltage and total power
- LED load current and application
- AC input voltage
- Required housing dimensions
- Indoor, outdoor or wet-location installation conditions
- Dimming requirements, if applicable
- Required safety certifications and IP rating
- Estimated quantity and project schedule
This information helps the FAHOLD team identify a suitable existing model before discussing project-specific requirements.
For a wider selection of constant-voltage solutions, browse the LED Sign Power Supplies category.
Need help selecting a model? Open the relevant product page to review specifications, use Compare to evaluate compatible options, or add multiple products to the Inquiry List and submit a combined RFQ.
Frequently Asked Questions
What is a single-output LED power supply?
A single-output LED power supply provides one regulated DC output for a compatible LED load. It is suitable when the lighting circuit can be supplied through one output rather than requiring multiple independently rated output channels.
What is the difference between the L2-E and L3 LED power supply series?
The L2-E Series offers slim 12V and 24V constant-voltage models from 20W to 150W for compact signage, channel letters and cabinet lighting. The L3 Series offers isolated single-output models from 100W to 1200W, with 12V, 24V, 36V and 48V options for higher-power signage and LED lighting applications.
What input voltage do FAHOLD single-output LED power supplies support?
L2-E models use 120ā277Vac rated input. L3 models use 100ā277Vac or 120ā277Vac input ranges, depending on the selected SKU. Always check the individual product datasheet against the project's AC supply voltage.
Are FAHOLD single-output LED sign power supplies dimmable?
The listed L2-E and L3 platforms are non-dimmable. Offline programming on a supported model does not mean that it supports dimming. If your project requires TRIAC, ELV, MLV, 0ā10V or PWM control, specify the required interface before requesting a quotation.
Can these LED power supplies be used for outdoor signage?
Selected L2-E models offer IP65 or IP67 protection options, while selected L3 models offer IP67 or IP68 protection. The exact rating, wiring arrangement and installation conditions must be verified for the model being purchased.
Are all L2-E and L3 models UL Class 2 certified?
Class 2 status must be verified at the individual model and configuration level. Some L2-E models are specified with Class 2 certification, but buyers should not assume that every single-output model, particularly higher-power L3 products, meets the same requirements. Request the applicable certification documentation before specifying a product.
Can I request samples or a bulk quotation from FAHOLD?
Yes. FAHOLD accepts product inquiries for model selection, datasheets, samples and bulk purchasing. Include the required voltage, power, input range, installation conditions and estimated quantity. You can also add multiple products to the Inquiry List and submit them together for review.
