Skip to content

Basler Light Controller 2C-1.25A-50W-24V#

The Basler Light Controller 2C-1.25A-50W-24V allows you to use any Basler Standard Light as well as any other light device in your environment.

If you directly connect the lights to the controller, you can specify the output current supplied to the light which in turn controls the light intensity. Alternatively, you can use a camera as an external trigger source allowing you to turn the light on or off.


General Specifications#

Basler Light Controller 2C-1.25A-50W-24V
Lighting Modes Continuous
Strobe On/Off (via external triggering)
Protection Overcurrent protection
Short circuit protection
Over temperature protection
Drive Method Current-controlled
Number of Channels 2
Input Voltage 100–240 VAC
Power Consumption 65 W
External Trigger Frequency Max. 10 KHz (Recommended ≤1 KHz)
External Trigger Response <50 µs
Output Current Range per Channel 10 mA – 1.25 A
Output Voltage 8–24 VDC
Ripple Current <15 % @ 24 VDC/1.25 A
Max. Output Power 30 W per channel; 50 W total
External Trigger Input 12–24 VDC; External On/Off trigger with High/Low switch
Size (L x W x H) 100 x 93 x 125 mm
Weight approx. 850 g
Connectors 2 x 3-pin JST-SMR female connector (light)
5-pin PCB terminal block connector (trigger input)
3-pin C14 connector (power input)
Conformity CE (includes RoHS), UKCA, FCC, KC, REACH
Package Contents Basler Light Controller 2C-1.25A-50W-24V
DIN rail bracket and screw (2200001191)
5-pin DC trigger connector (2200001190)
Accessories AC power supply cable
Basler Standard Lights

Mechanical Specifications#

Dimensions of Basler Light Controller 2C-1.25A-50W-24V (in mm)


Environmental Requirements#

Temperature and Humidity#

Temperature during operation 0–40 °C (32–104 °F)
Humidity during operation 20–85 %, relative, non-condensing
Storage temperature 0–60 °C (-4–140 °F)
Storage humidity 20–85 %, relative, non-condensing

Electrical Requirements#

Power must be supplied to the controller via the 3-pin C14 connector labeled AC IN 100-240V.

Voltage Requirements Power Consumption
100–240 VAC 65 W

NOTICE – The controller produces high-energy pulses which may damage the controller if there is no protection against short circuits.

  • Connect the outputs correctly.

Circuit Diagram for External Triggering#

Circuit Diagram External Trigger Basler Light Controller 2C-1.25A-50W-24V

Cable Requirements#

Power Supply Cable#

NOTICE – Using incorrect power supply cables may damage the controller.

Always use one of the following power supply cables:

  • 100–120 VAC:
    • SVT or SJT
    • AWG18
    • length: 3 m max.
    • dielectric strength: 125 VAC min
  • 200–240 VAC:
    • H05VV-F
    • AWG18
    • length: 3 m max.
    • dielectric strength: 250 VAC min

Controller-to-Light Cable#

The maximum cable length is 8 m.

For optimum performance and ease-of-use, Basler recommends using the following cables:

  • BLC-BSL connect cable M8, 2m (order number: 2200001192)
  • BLC-BSL connect cable M8, 5m (order number: 2200001193)
  • BLC-BSL connect cable M8, 8m (order number: 2200001194)

External Trigger Cable#

The maximum cable length is 10 m.

Physical Interface#

Physical Interface

Part Function
1 Current limit selector Sets the maximum output current in relation to the light intensity specified
2 Current adjustment switch Adjusts light intensity
3 External trigger switch (TRIG H/L) Sets the mode for the external trigger
4 Device status LED (PWR) Indicates controller operation
5 Functional ground (FG) Mitigates electromagnetic interference
6 Power switch (ON/OFF) Turns power on or off
7 3-pin C14 connector (AC IN 100-240V) Power input
8 5-pin PCB terminal block connector (TRIG) Trigger input
9 3-pin JST-SMR female connector (CH 1, CH 2) Light

Device Status LED#

LED State Meaning
Off The controller isn't connected to power.
Green The controller is connected to power and fully operational.

Connector Pinout#

3-Pin JST-SMR Female Connector#

Pin Numbering 3-Pin JST-SMR Female Connector

Pin Function
1 Light +
2 Not connected
3 Light -

5-Pin PCB Terminal Block Connector#

Pin Numbering 5-pin PCB Terminal Block Connector

Pin Function
1 Common
2 Not connected
3 Not connected
4 Channel 2
5 Channel 1


WARNING – Fire Hazard / Electric Shock Hazard

Unapproved disassembly or modification of the product may result in fire or electric shock.

  • Do not disassemble or modify the product.

Exposure of the product to water may cause fire or electric shock or both.

  • Make sure that the product is not exposed to water or any other liquids.

Connecting or disconnecting the light cable while the power supply is switched on may result in circuit damage, fire caused by small sparks, or electric shock.

  • Connect or disconnect the light cable only after turning off the power supply.

Damaging the cables of the product may result in fire or electric shock or both.

  • Before moving the product, disconnect all cables.
WARNING – Electric Shock Hazard

Connecting or disconnecting the controller and cables with wet hands may result in electric shock.

  • Do not connect or disconnect components with wet hands.

Unapproved power supplies may cause electric shock. Serious injury or death may occur.

  • You must use power supplies that meet the Safety Extra Low Voltage (SELV) and Limited Power Source (LPS) requirements.
WARNING – Fire Hazard

Continuing to use the product after detecting smoke, heat, smell, noise, etc. may cause fire or electric shock or both.

  • Stop using the product immediately and turn off the power supply.

Using the wrong material to remove dust or other foreign substances from the electrodes may cause fire.

  • To remove dust or other foreign substances, turn off the power supply and use only a dry cloth.
NOTICE – Improper handling may damage the product.

Improper handling may cause product failure.

  • You must handle the product with care.
  • Place the product on a firm, flat, and even surface.
  • Do not drop the product or subject it to mechanical shock.
  • Do not place the product in direct sunlight or high-humidity environment.
NOTICE – Product Failure

Incorrect handling of product cables may cause the product to malfunction.

  • Do not bundle product cables with high voltage lines or power lines.
  • Allow sufficient space when installing the cables.
  • Do not bend cables beyond their natural bending radius or squeeze cables into a narrow space when wiring the product.

Short circuits will have an impact on the product and may cause product failure.

  • Do not intentionally short-circuit the positive and negative output terminals.
  • When installing the controller in your environment, don't insert the screws any deeper than 5 mm.
NOTICE – Incorrect voltage may damage the product.

Using the product outside of the safe range of input voltage may damage the product.

  • Only supply the product with voltage within the safe range of input voltage.
NOTICE – Inappropriate cleaning substances may damage the product.
  • Using inappropriate cleaning substances may cause discoloration or deterioration of the product surface.

  • Don't wipe the product with organic solvents, e.g., paint thinner or benzene.


NOTICE – Leaving the power source turned on while setting up the controller or connecting/disconnecting any cables may lead to the controller malfunctioning.

Always turn the power source off, when setting up the controller or connecting/disconnecting any cables.

NOTICE – Product Failure

Not providing heat dissipation may cause product failure.

  • When installing the controller, leave sufficient space around the cooling vents on both sides to allow any heat to dissipate.

Electromagnetic Interference (EMI) may negatively affect the quality of the controller.

  • Always connect the controller to functional ground.

Mounting the Controller On a DIN Rail#

To mount the controller on a DIN rail:

  1. Tilt the controller to hook over the DIN rail.
  2. Push down on the controller to fasten it to the DIN rail.

Connecting the Controller and the Light#

Connect the cable of the light using the Light + and Light - pins of the 3-Pin JST-SMR female connector.

Connecting the Controller and the Camera#

To connect a camera as an external trigger source:

  1. Connect the open ends of the external trigger cable to the 5-pin PCB terminal block connector labeled TRIG.
  2. Tighten the locking screws (maximum torque 19 Ncm).

Connecting the Controller and the Power Supply Cable#

Plug the power supply cable into the controller's 3-pin C14 connector labeled AC IN 100-240V.


Operating the Controller Manually#

NOTICE – Currents outside of the specified output current range may damage the LEDs of the light.

  • You must supply the light with the correct output current stated below.

To operate the controller manually:

  1. Set the current limit selector as described in the Output Current Limits section.
  2. Set the power switch to ON.
    The PWR device status LED indicates controller operation (green = controller operating).

Output Current Limits#

The current limit selector allows you to specify the output current to the light. The following graphic shows the available output current limits.

Current Limit Selector

Adjusting the Light Intensity#

The current adjustment switch allows you to adjust the light intensity of the light.

Current Adjustment Switch

To adjust the light intensity:

  • Turn the current adjustment switch clockwise to increase the light intensity.
  • Turn the current adjustment switch counterclockwise to decrease the light intensity.

The following table shows the output current in mA with the respective output current limit and light intensity set:

Output Current Limit 0 %
Light Intensity
25 %
Light Intensity
50 %
Light Intensity
75 %
Light Intensity
100 %
Light Intensity
1.25 A 0 mA 313 mA 625 mA 938 mA 1250 mA
0.9 A 0 mA 225 mA 450 mA 675 mA 900 mA
0.6 A 0 mA 150 mA 300 mA 450 mA 600 mA
0.3 A 0 mA 75 mA 150 mA 225 mA 300 mA

Operating the Controller Externally#

To operate the controller externally and turn the light on or off:

  1. Set the external trigger switch TRIG H/L to the desired mode, High or Low.
  2. Set the input signal of the external trigger as described in the Trigger Logic Switch Settings section.
  3. Set the power switch to ON.
    The PWR device status LED indicates controller operation (green = controller operating).

External Trigger Switch Settings#

Trig H/L Input Signal Light
High High On
High Low Off
Trig H/L Input Signal Light
Low Low On
Low High Off


Turning off the power switch for 3 seconds may help in cases of abnormal behavior or if one of the three protection modes has been activated, e. g., the overcurrent protection.