Camera data transmitter Cullmann CUlight Trigger Kit 500C — wireless trigger, range up to 100 m, black

Cullmann CUlight Trigger Kit 500C is a camera data transmitter and wireless trigger kit designed for Canon cameras. The kit includes a CUlight RT 500 transmitter and CUlight RR 500 receiver that communicate via 2.4 GHz radio transmission, allowing remote shutter release, flash sync and group control without a line-of-sight connection. The system supports remote operation at distances up to 100 meters and provides an illuminated LCD for clear status and settings. A USB interface on the transmitter enables firmware updates to keep the device current with camera and flash compatibility.

Advantages

The CUlight Trigger Kit 500C offers radio triggering at 2.4 GHz for reliable, cable-free operation and a maximum stated range of up to 100 meters. It supports configuration of up to five independently controlled groups with multiple channels available per group, and the illuminated LCD simplifies setup and on-location adjustments. Firmware can be updated via USB to maintain compatibility and add improvements. The kit is produced in a black finish and is suitable for studio and location workflows where remote flash and shutter control is required.

Suitable for

• Studio flash setups requiring remote group control
• Outdoor photography where cable-free triggering and extended range are needed
• Portrait and product shoots using multiple flash units
• Situations that require remote shutter release and synchronized flash firing

Key specifications

• Radio frequency: 2.4 GHz
• Operating range: up to 100 meters (stated)
• Channels/groups: up to 5 groups with multiple channels per group
• Supported functions: remote shutter release, flash sync, group control, TTL high-speed triggering for compatible cameras
• User interface: illuminated LCD display on transmitter
• Connectivity: USB interface for firmware updates
• Finish/color: black

How to use

Mount the CUlight RT 500 transmitter on the camera hotshoe and attach the CUlight RR 500 receiver to the flash unit or lighting device, or connect via the receiver's sync port where available. Power both units according to the manufacturer instructions, select the same channel and group settings on transmitter and receiver using the illuminated LCD, and verify radio link within the stated range. Use the group and channel controls to set individual or grouped flash power and triggering behavior. If needed, connect the transmitter to a computer via USB to apply firmware updates before shooting.

Usage recommendations

For reliable operation, test the radio link and group/channel configuration before a session, keep firmware up to date via the USB interface, and position receivers to avoid strong RF interference. Verify compatibility with your specific Canon camera model and flash units prior to critical shoots.