Owner manual

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Photocell (255TCL-TX only)
255HTCL-TX-* Models Only
The 255HTCL-TX versions have a built in photocell that can detect the ambient light and
automatically switch the light between high power (day mode) and low power (night mode).
Please note: By default the 255HTCL-TX-* light is set to auto-switch between Day and
Night mode. To change this, proceed below.
To Deactivate Day/Night Auto-Switching:
1. Activate the light.
2. Apply +12V to the White wire.
3. Hold Green wire to Ground for 3 sec. (Unit will respond by flashing once).
4. Disconnect White wire from +12V.
The light will now be configured with Day/Night auto-switching deactivated.
To Activate Day/Night Auto-Switching:
1. Activate the light.
2. Apply +12V to the White wire.
3. Hold Green wire to Ground for 6 sec. (Unit will respond by flashing two times).
4. Disconnect White wire from +12V.
The light will now be configured with Day/Night auto-switching activated.
Please note: Although the light is set to auto-switch, Grounding the Purple wire will
still force the light into night mode (low power)
Low Voltage Detection (Rotating Models Only)
All of the beacons that have the rotational patterns also have low input voltage detection. With this
feature the beacon senses the input voltage and flashes a fast pattern (approximately 16 cycles
per second) to indicate to the user that the battery voltage is low (less than 10V). Once the input
voltage returns to normal (greater than 12V) the unit will return to the normal flashing.