LED Driver

What is LED driver?

Light emitted from an LED (Light Emitting Diode) is directly proportional to the current passing through it. Its implied that we need a constant current to flow through the LED (or a string of LEDs). It is also desirable to be able to reduce the or increase the brightness as per lighting requirement. Imagine a theater, where the lights dim down gradually or flash rapidly. LED drivers do exactly this and a few other things for protection from electrical noise and thermal effects. LED drivers are one-part power supply and one-part current regulator.

Features of GTD Labs’s LED driver

  • High PF, Primary Side Regulation, CV operation, Thermal shut off
  • Isolated SMPS, Low Standby power < 1W
  • Secondary MCU based digital buck LED drive
  • Multiple Protections features
  • Application: Smart Lighting | Street Lighting
LED driver


Input Information
Line Voltage 110Vac
Line Current 1.0A
Line Frequency 60Hz
Min. Mains voltage operational 70Vac
Max. Mains voltage operational 140Vac
THD (total) <7%
Power Factor (PF) > 0.98
Inrush Current 3.0 A
Lightning Surge Protection Ext. SPD


Output voltage range 24V to 56V
Maximum open circuit voltage < 60V
Output Current Ripple < 5%
Protections •Thermal Shutoff

•O/P Short

•O/P Overload

•Sense R short

•O/P Diode short

•O/P Over voltage


Special Features
External Interface UART (Radio Agnostic)
Sensors •2 analog

•2 digital

Timed Dim •RTC

•Astronomical Clock

Operation Mode •Communication Slave


Inbuilt Meter Voltage, Current, Power, Energy
No Of Lights Dual / Triple*