LED Power Supply Frequently Asked Questions
Review order and service information, then use the selection and application answers to compare LED power supplies by voltage, wattage, environment and dimming requirements.
Order and service
Order, warranty and support FAQs
Key information about warranty coverage, delivery, payment, manufacturing and packaging.
What is the after-sales service scope and warranty period for LED power supply?
The warranty period is 3 years from the date all goods pass acceptance inspection. For internal quality issues within the warranty period, we provide free repair and replacement.
What is the delivery lead time for LED power supply?
Delivery is usually completed within 30 days from the date we receive the deposit.
What are the payment terms for LED power supply orders?
A deposit of 10% of the total contract value shall be paid upon signing the contract. The balance shall be paid in full before delivery.
Are you a manufacturer or trading company? Where is your company located?
We are a professional LED power supply manufacturer. Our company is located in Zhongshan, Guangdong Province, China.
Can we use the specified packing method for LED power supply?
Yes. We can use the packaging method you specify according to your market or shipping requirements.
Selection and application
LED power supply selection FAQs
Practical answers for matching a driver to the load, installation environment, dimming requirement and available installation space.
What information is needed to start an LED power supply selection?
Prepare the mains input voltage and frequency, LED load voltage, total load wattage, installation environment, dimming or control requirement, ambient conditions and available installation space. These details help narrow the range before comparing individual series.
How do I choose between 12V, 24V and 48V LED power supplies?
Match the driver output to the rated input of the LED load. 12 V is often used for compact low-voltage systems, 24 V for longer runs and higher-power lighting, and 48 V for compatible systems such as magnetic lighting. Never connect a load to a different output voltage unless both the load and system are rated for it.
Can a 12V power supply be used with a 24V LED load?
No. The power supply output and LED load voltage must match. Use a 24 V driver for a 24 V load, or confirm an explicitly compatible system before installation. An incorrect output voltage can prevent the lighting from operating correctly.
How should I calculate the required LED power supply wattage?
Add the rated wattage of all connected LED loads, then allow suitable headroom for start-up, voltage drop and future adjustments. Many projects use around 20-30% headroom as a planning guide, but the final margin should be checked against the selected model, load type and installation conditions.
Which series should I consider for indoor LED lighting?
For indoor projects, the selection center includes 24 V options such as ZUN, YUO7, SUO7, Light, LS, Rayling, XingYang and Value-Priced series, plus 12 V/24 V options such as ZHENPIN and Ultra-Thin & Slim. The right choice depends on load wattage, dimming requirements, available space and whether a protected construction is needed.
Which LED power supply options fit signage and light boxes?
For compact and concealed installations, consider the Ultra-Thin & Slim Series, which offers 12 V/24 V output, 24-100 W and a compact format. For signage and display projects requiring more power or different control, compare the project load, installation depth, output voltage and dimming requirement before selecting a series.
Which series are suitable for outdoor and wet-weather lighting?
The selection center lists three outdoor options: High-End Rainproof Model (IP43, 24 V, 200-1000 W), Rainproof Semi-Potted Series (12 V/24 V, 400 W) and Engineering Shield IP67 Series (24 V, 60-400 W, fully sealed resin-potted). Protection choice depends on exposure, mounting position, drainage and cable-entry protection. Confirm complete installation conditions before ordering.
How do I choose a dimmable LED power supply?
First confirm the intended control method and required dimming range, then select a compatible driver. The selection center includes paddle dimming options such as ZUN, YUO7, SUO7 and ZHENPIN, smart dimming with soft-start on Rayling, and stepless dimming on the 400 W B model of the High-End Rainproof range. Not every series is dimmable, so check the model before ordering.
What installation details should I confirm before ordering?
Confirm enclosure space, mounting direction, cable entry, heat dissipation, ambient conditions and the connection method for the LED load. For outdoor or wet-weather installations, also review drainage, exposure and protection around cable entries and connectors. These details help confirm that the selected housing and protection level fit the project.
Can LIAM recommend a suitable power supply for a lighting project?
Yes. Send LIAM the mains input, LED load voltage, total wattage, installation environment, dimming or control requirement, dimensions and project quantity. The team can recommend a suitable series and confirm the exact model, available options and technical details for the project.
Still deciding which LED power supply fits the project?
Send the load voltage, total wattage, mains input, installation environment, control requirement, dimensions and project quantity.
