Colorlight SSR-L16 Light Sensor for LED Displays
The Colorlight SSR-L16 detects surrounding light levels so an LED display system can adjust its brightness automatically. It connects to an iM9 multifunction card and uses the measured brightness together with a configured adjustment strategy.
Using the sensor with an iM9 card
The iM9 provides four selectable extended interfaces for connecting the sensor. In this arrangement, the SSR-L16 does not require a separate external power supply. Its rated voltage is 5 V.
The sensor is specified for outdoor use and has a standard 5 m cable. The cable can be extended, but the V1.0 specification does not define a maximum extension length. The brightness range is 0–65535 lux.
Technical specifications
| Parameter | Specification |
|---|---|
| Type | Ambient light / brightness sensor |
| Application | Automatic LED display brightness adjustment |
| Connection | iM9 multifunction card extended interface |
| Rated voltage | 5 V |
| Separate external power supply | Not required |
| Brightness range | 0–65535 lux |
| Working temperature | −20°C to 75°C |
| Working humidity | 0–99% |
| Standard wire length | 5 m; extendable |
| Intended use | Outdoor |
Frequently Asked Questions
How does the SSR-L16 control LED screen brightness?
It monitors ambient brightness. The display system adjusts screen brightness using that reading and the adjustment strategy configured in advance.
Can I connect the SSR-L16 to an iM9 card?
Yes. The specified connection is to an iM9 multifunction card using one of its extended interfaces.
Does the SSR-L16 need an external adapter?
The specification states that no separate external power supply is required. Rated voltage is 5 V.
Is the SSR-L16 suitable for outdoor use?
Yes. The specification identifies outdoor use, with a working temperature of −20°C to 75°C and working humidity of 0–99%.
What cable length is supplied?
The standard wire length is 5 m. Extension is supported, but a maximum extension length is not stated in the specification.






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