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Understanding LED Driver Output Types
LED drivers use two main output types: Constant Voltage (CV) and Constant Current (CC).
 
● Constant Voltage (CV): Provides fixed 12V, 24V, 36V, or 48V output for LED strips and modules.
● Constant Current (CC): Delivers regulated current for LED modules and luminaires, with adjustable output current via DIP switches or NFC on selected models.

Choose the output type that matches your LED fixture’s voltage, current, and power requirements.
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Constant Current vs. Constant Voltage: 
Side-by-Side Comparison
Feature Constant Current (CC) Constant Voltage (CV)
Output Type Maintains a fixed output current
DIP Adjustable Current: Select different output current levels using a DIP switch or NFC
Maintains a fixed output voltageFixed Output Voltage
Best For LED downlights, COB LEDs, LED modules, spotlights, panel lights, ceiling lights, floodlights, street lights, high bay lights LED strips, LED panels, signage, linear lighting
Typical Output e.g. 100mA–2100mA e.g. 12V, 24V, 36V, 48V
Main Selection Factor LED forward voltage + required currentLED LED operating voltage + total load wattage
Load Matching Must match the LED's rated current Must match the LED system's rated voltage
Wiring Generally more sensitive to LED configuration Generally simpler for multiple LED modules
Typical Applications Downlights, spotlights, street lights, high-power fixtures LED strips, cabinet lighting, linear fixtures, signage
Dimming Options 0-10V, DALI, TRIAC, DMX512, Matter, BLE, Non-dimming, etc. 0-10V, DALI, TRIAC, DMX512, Matter, BLE, ZigBee, Wireless, Non-dimming, etc.
Key Advantage Provides precise current regulation for stable LED operation Flexible for multiple LED loads at the same voltage
Main Risk of Wrong Selection Incorrect current can damage LEDs Incorrect voltage can damage LEDs
How to Choose Match the LED driver's output current, voltage, power, and control protocol to the LED fixture requirements. Match the LED driver's output voltage, power, and dimming method to the LED fixture requirements.
How to Choose the Right Form Factor
Application Recommended
High-Power LED / COB Constant Current (CC)
LED Downlights / Spotlights Constant Current (CC)
Street Lighting Constant Current (CC)
High Bay Lighting Constant Current (CC)
Outdoor / Commercial Lighting Constant Current (CC)
LED Strips LED Constant Voltage (CV)
LED Bars / Linear Modules LED Constant Voltage (CV)
Signage / Advertising Constant Voltage (CV)
Architectural Lighting CC or CV, depending on the luminaire design
Custom LED Modules CC or CV, depending on the luminaire design

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