Lighting / LED Drivers
User Manual for Skydance LN-12A-H and LN-12A-L LED Driver
Quick guide for Skydance LN-12A-H and LN-12A-L LED drivers. Includes wiring diagrams, DIP switch current settings, technical specifications, and dimming compatibility instructions.
Table of contents
Manual images
Click an image to enlargeQuick Guide from the Manual
The Skydance LN-12A-H and LN-12A-L are constant current LED drivers designed for indoor lighting applications. They support multiple dimming interfaces (0-10V, 1-10V, 10V PWM, Resistor) and feature configurable output current via DIP switches. Ensure the input voltage is within the 100-240VAC range and that the total number of drivers connected to a single dimmer does not exceed 50 units.
Product Overview
These LED drivers are housed in a protective plastic case and include built-in protections for over-heat, over-load, and short circuits, with automatic recovery. They are suitable for downlights, spotlights, and various commercial or domestic lighting setups.
Installation and Wiring
The device requires connection to AC power and the LED load. Ensure all connections are secure before powering on.
- AC Input: Connect to AC L and AC N terminals.
- LED Output: Connect to LED output + and LED output - terminals.
- Dimming Input: Connect the dimming control signal to the DIM+ and DIM- terminals.
The maximum wire length from the dimmer to the LED driver should not exceed 50 meters.
DIP Switch Settings
The driver features a 3-position DIP switch used to configure the constant current output. Refer to the label on the device or the technical specifications section to match the switch positions (1, 2, 3) with the required output current (mA) for your specific LED load.
Dimming Operation
The 0/1-10V input is compatible with commercially available rotary wall switches or dedicated central dimming controllers. The system supports 0-10V, 1-10V, 10V PWM, and Resistor (4-in-1) dimming signals.
Technical Specifications
LN-12A-H: Output 3-24VDC, 350-700mA, Max 12W.
LN-12A-L: Output 9-45VDC, 100-450mA, Max 12W.
Both models operate on 100-240VAC input, 50/60Hz, and feature an efficiency rating of >79% (H model) or >80% (L model) at 230VAC.
Safety and Protections
The driver includes automatic protection mechanisms. If the input voltage is out of range, the output is disabled. In the event of a short circuit, the output is disabled. If the PCB temperature exceeds 100°C, the driver will reduce the output current or shut down. All protections recover automatically once the fault condition is removed.
Manufacturer information
Guangzhou Skydance Co., Ltd.
Practical help
Common problems
Dimming is not functioning correctly
Verify that the dimmer is compatible (0-10V, 1-10V, 10V PWM, or Resistor) and that the wire length from the dimmer to the driver is under 50 meters.
Driver shuts down unexpectedly
Check for short circuits or over-load conditions. The driver will recover automatically once the issue is resolved.
LEDs are flickering or unstable
Ensure the DIP switch settings match the current requirements of your LED load and that the input voltage is stable (100-240VAC).
Before use
- Verify input voltage is 100-240VAC.
- Check LED load voltage and current requirements.
- Set the DIP switches to the correct current (mA) for your LEDs.
- Ensure the dimmer is compatible with 0/1-10V signals.
- Confirm wire length from dimmer to driver is less than 50m.
Specs in practice
- 0/1-10V Dimming
- Supports 4-in-1 dimming: 0-10V, 1-10V, 10V PWM, and Resistor.
Images and diagrams
- Wiring Diagram: Shows AC input (L/N), LED output (+/-), and Dimming input (DIM+/-).
- DIP Switch Table: Indicates the switch positions (1, 2, 3) required to set specific output currents.
Model compatibility
- Do not connect more than 50 drivers to a single dimmer.
- Suitable for indoor use only.
- Compatible with 0-10V, 1-10V, 10V PWM, and Resistor dimming.
Manual page author
David Miller
Documentation analyst
Organizes user manual content into clear summaries, with attention to model details, product context, and everyday usability.