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World leaders in
LED Lighting and Control


PP400 LED Pulse and Strobe Controllers
  • PP400 LED Pulse and Strobe Controllers
  • PP400 LED Pulse and Strobe Controllers
  • PP400 LED Pulse and Strobe Controllers

PP420 LED Strobe Controller

Key features:

  • Compatible with nearly any LED lighting assembly available today
  • Four independent controlled output channels
  • Ethernet interface
  • SafeSense™ technology for safe overdriving
  • Small compact unit with optional DIN mounting available

PP420 Quick Specification:

  • 4 channel output
  • Ethernet interface
  • 10A maximum pulsed
  • 2A maximum continuous
  • Supply voltage 12-48V DC
  • SafeSense™ enabled
  • 20µS minimum pulse width
  • Optional 1µS pulse width (F version)

For a full specification please refer to the PP420 datasheet

Manufacturer connection diagrams

  • CCS Connectivity

To get the very best out of your LED lighting solution, in terms of brightness stability and control, the lights should be driven from a current source, not a nominal voltage supply. The Gardasoft pulse / strobe controllers are current sources. The PP420 LED lighting controller offers four output channels which are independently controlled.

Each channel can be individually configured to output continuously; or pulsed based on an external trigger signal or internal timer. The 'F' version controller will allow pulse width control down to 1µS resolution. Selected mode allows switching of the light based upon the state of an external trigger.

The PP420 models can be quickly configured using our free software which can be downloaded from this page, or simply by accessing the controller via your internet browser; type in the IP address for the controller into your browser and you have full access to all of the parameters. If you are using a third party software package the PP420 has a simple command set that is detailed in the manual allowing easy communication. As with all Gardasoft products, all the settings are stored in non-volatile memory, and it will retain these settings even when the Ethernet connection is disconnected.

Using our patented SafeSense™ technology, the PP420 controller allows you to overdrive your LED lights safe in the knowledge that the lights will be protected from damage. SafeSense™ regulates the pulse width timing and duty cycle, depending on how high you are overdriving the light. The end result is you get the maximum light possible for your application. Gardasoft Controllers are universally compatible with LED Vision lighting, from manufacturers such as CCS.

If you're overdriving you may need to increase the DC power input to the controller or heat-sink the controller due to power dissipation. If this is an issue for your application we would recommend the RT400 series controller, which has all of the features of the PP420 controller but is based around our SafePower™ technology. The Gardasoft White Paper on LED Controller technology is a useful reference for the principles of attaining maximum performance for Machine Vision illumination.

User interfaceEthernetEthernet
Output channelsFour independent constant current outputs with SafeSense™.
Output currentFrom 0mA to 10A in steps of 2.5mA.
Up to 2A per channel continuous or 10A pulsed.
Total 2A maximum average output current from the controller
Trigger inputs4 opto-isolated digital inputs. Require 3V to 24V at 3mA.
Pulse width timingFrom 20us to 999 milliseconds in steps of 20us.
Timing repeatability 0.1us
From 1us to 999 milliseconds in steps of 0.1us.
Timing repeatability 0.1us
Delay from trigger to pulseFrom 20us to 999 milliseconds in steps of 20us.
Timing repeatability 1us (depending on conditions)
From 3us to 999 milliseconds in steps of 1us.
Timing repeatability 1us (depending on conditions)
Output voltage0V to 46V.
Supply voltageRegulated 12V to 48V. The supply voltage must be at least 1V higher than the output voltage required by the lighting.
Dimensions118mm long by 76mm wide by 27mm high (excluding DIN fixing)
Weight240g excluding DIN fixing
MountingDIN rail or panel mounting.