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Behavior > Optogenetics


Model 31202-020

4 Channel PlexBright Optogenetic Controller with Radiant Software


The PlexBright 4 Channel Optogenetic Controller controlled by Radiant Software is one of the cornerstones of the PlexBright Optogenetic Stimulation System (PlexBright System). The newest version of Radiant, version 2.0, was released at the start of 2014 and offers unsurpassed control of LEDs or lasers over multiple channels.

Through Radiant’s easy-to-use GUI, each 4 Channel Optogenetic Controller starts, drives and stops up to four channels independently from the most basic signals to the generation of sophisticated output patterns. Further, one channel may drive an LED module, while a second channel drives a laser.

Each channel/output may be configured to deliver up to 1100mA of precision-controlled current to one or two PlexBright LED Modules. Alternatively, outputs may be configured to deliver up to a 5V signal, enabling simultaneous control of both LED modules and lasers. The 4 Channel Optogenetic Controller further enables interaction with third party equipment through eight digital inputs and 16 digital outputs.

Radiant 2.0’s pattern generation functionality allows researchers to quickly define simple to complex output patterns that may be saved and played back repeatedly. Arbitrary stimulation patterns can also be loaded from user defined text files, or the outputs can be controlled directly by the user in manual mode. Patterns can also be generated in an offline mode for use at a later time.

With respect to LEDs – and like the PlexBright LD-1 Single Channel LED Driver – each output of the 4 Channel Optogenetic Controller is capable of controlling one or two LED modules. When two modules share a single output simultaneously (accomplished via a specialized cable that connects the LED Modules in series called a PlexBright Series-Y BNC cable), each module receives the same control signal. This configuration is particularly applicable to bilateral stimulation experiments.

For higher volume research experiments, Radiant enables the integration of up to four PlexBright 4 Channel Optogenetic Controllers simultaneously operated by a single computer – yielding up to 16 channels of independent output.

PlexBright Starter Kits offer the initial products to get started and a 10% discount when purchased as a kit. Kits are available in four experimental designs and with either driver – the 4 Channel Optogenetic Controller with Radiant Software (fully functional kit) or our other device, the LD-1 Single Channel LED Driver (economical kit).

PlexBright Quote Request Forms (also specific to the experimental set-up) include the Starter Kit itemization and individual parts for selection. The forms are available on the Resources tab, or on the Documentation page under the PlexBright header.

In addition to the PlexBright 4 Channel Optogenetic Controller, the PlexBright System also offers the PlexBright LD-1 Single Channel LED Driver; a full range of super intensity PlexBright LED Modules; several PlexBright compatible commutator options; high performance PlexBright Optical Patch Cables with a choice of stimulation tips; specially designed PlexBright Fiber Stub Implants; the PlexBright Light Measurement Kit; and the PlexBright Optical Fiber Cleaning Kit to safely maintain and extend the life of the fiber tips.



Specifications and Options

PlexBright Starter Kits- Freely Behaving Mouse & Small Animal Kit
- Freely Behaving Rat & Large Animal Kit
- Head-fixed/Anesthetized Animal Kit
- In vitro Experiment Kit
Hardware- PlexBright 4 Channel Optogenetic Controller
Light source compatibility- PlexBright LED Modules and
- Third-party lasers
Analog output channelsUp to 4
Channel synchronizationCapable
Stimulation modes- Current or
- Voltage
Current outputUp to 1100mA
Voltage output0 to 5V
Temporal resolution100ìs
Digital inputs8
Digital outputs16
Minimum trigger pulse width200ìs
Arbitrary waveform update rate10kHz
Commutator compatibility- PlexBright Dual LED Commutator, or
- PlexBright Dual LED + 16 Channel Commutator
Dimensions4.8 x 9.7 x 20.3cm
1.9 x 3.8 x 8.0 inches
4 Channel Optogenetic Controller includes- Optogenetic stimulator,
- Power supply and power cord,
- USB cable, and
- Four color-coded insulated BNC cables (1 per channel)
Pattern generationCapable
LED module compatibilityAll PlexBright LED Modules
Number of LED modules controlled per channel simultaneously1 or 2
Devices per Radiant licenseUp to 4
Operating SystemsWindows® XP or Windows 7
Activation requirementPlexon version-specific hardware license key
AccessoriesPlexBright Series-Y BNC Cable


Campden Instruments LTD
P.O. Box 8148
Loughborough, Leics.,
LE12 7XT. England

Tel: +44 1509 814790


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Campden Instruments LTD
P.O. Box 8148
Loughborough, Leics.,
LE12 7XT. England

Tel: +44 1509 814790

Copyright © 2009 - 2017 Campden Instruments LTD. All Rights Reserved.