NEW PlexBright Motorized Carousel Commutator

The newly launched PlexBright Motorized Carousel Commutator is the most recent addition to the rapidly growing PlexBright Optogenetic Stimulation System product line.

This commutator is ideal for experiments in which optogenetic stimulation is performed simultaneously with neural recording using digital headstages. It can be used with up to four digitizing headstages and two Plexon compact LED modules. There is also a hole down the center of the commutator which can be used for fluid delivery or an optical swivel.

This is the commutator to choose if combining optogentics with a:

  • OmniPlex® D System utilizing Digital Headstage Processor (DHP)

The table below provides many of the most commonly requested specifications.


FeaturesPlexBright Dual
LED Commutator
PlexBright Dual LED + 16 Channel Commutator Carousel CommutatorMotorized Carousel CommutatorDual LED + Fluid Swivel CommutatorRemarks
Optical Channels22222 (Head-Mounted LED)
Plexon data acquisition system compatibilityNone
– OmniPlex® D System utilizing either a DigiAmp™ or MiniDigi™ digitizing amplifier,
– OmniPlex System utilizing an analog amplifier, or
– MAP System
– OmniPlex System utilizing a Digital Headstage Processor (DHP)– OmniPlex System utilizing a Digital Headstage Processor (DHP)– OmniPlex System utilizing a Digital Headstage Processor (DHP)
Headstage compatibilityn/a1 analogUp to 2 digitalUp to 4 digitaln/a
Electrical channelsn/a16Depends on channels per headstage (up to 64 channels with any combination of 16 or 32 channel headstages)n/a
Total lines425 20401 fluid
LED module compatibilityPlexBright CompactPlexBright CompactPlexBright CompactPlexBright CompactPlexBright Head-Mounted
LED module attachment baseMagneticMagnetic MagneticMagnetic2 Pin electrical connectorThe newer magnetic attachment bases replace the previous screw-attachment bases.
Number of mountable LEDs1 or 21 or 2 1 or 21 or 21 or 2Mixed-mode commutators can be used for nerual recording only, not requiring the simultaneous use of LED modules.
LED control signal lines2 pairs2 pairs 2 pairs2 pairs2 pairsUsing a PlexBright Series-Y BNC cable, both mounted PlexBright LED Modules can be simultaneously controlled with the same control signal as for bilateral experiments.
Maximum current per LED channel1.0A1.0A 1.0A1.0A0.3A
Actuation mechanismPassivePassive PassiveMotorized torque armPassiveA light-weight, low torque design allows for passively driven rotation even with small animals.
Input connectors from LED controller/driver2 BNC connectors2 BNC connectors 2 BNC connectors2 BNC connectors2 BNC connector tethersInput power/control signals from the PlexBright 4 Channel Optogenetic Controller or PlexBright LD-1 Single Channel LED Driver.
Output connectors to LEDTwo-pin socket connectorTwo-pin socket connector Two-pin socket connectorTwo-pin socket connectorTwo-pin socket connectorMates with the two-pin connector on PlexBright Compact LED Modules.
Electrical channel input connectorn/aHarwin connector Harwin connectorHarwin connectorn/a
Commutator dimensions (W x H x D)76.2 x 50.8 x 50.6mm
(3.0 x 2.0 x 2.5 inches)
101.6 x 114.3 x 76.2mm
(4.0 x 4.5 x 3.0 inches)
101.6 x 114.3 x 76.2mm
(4.0 x 4.5 x 3.0 inches)
180 x 280 x 127mm
(7.1 x 11.0 x 5.0 inches)
63.5 x 53.3 x 63.5mm
(2.5 x 2.1 x 2.5 inches)
Height below mounting plate20.3mm
(0.8 inches)
(2.0 inches)
(1.22 inches)
(8.0 inches)
0.7 inches
OD below mounting plate63.5mm diameter
(2.5 inches)
Recommended cut-out
63.5mm diameter
(2.5 inches)
Recommended cut-out
76.2mm diameter
(3.0 inches)
Recommended cut-out
114mm diameter
(4.5 inches)
Recommended cut-out
44.5mm diameter
(1.75 inches)
Recommended cut-out
Commutator weight0.14kg
AccessoriesPlexBright Series-Y BNC CablePlexBright Series-Y BNC Cable PlexBright Series-Y BNC Cable PlexBright Series-Y BNC CableClip onTorque ArmThe PlexBright Series-Y BNC Cable enables the simultaneous operation of two PlexBright LED Modules from a single channel in which identical parameters are desired for both modules.

If you have further questions, a Plexon Sales Engineer will be happy to help.

Technical Specs and Data Sheets