Settings Description - Victron energy BlueSolar PWM-Light 48V Manuel

4.2 Settings description

0 Charger only
The load output is switched off permanently.
1-13 Light control + delay
The load output automatically turns on after sunset (array voltage < 32V)
and the built-in timer starts counting.
When the timer reaches the set time, or when the low voltage limit is
reached, the load output will turn off.
H Manual
The load output can be turned on and off manually with the push button.
(low voltage shutdown remains active)
C Load output controlled by battery voltage only
Load disconnect and load reconnect will be based only on battery voltage,
see section 3
L Dusk to dawn mode
Turn on delay (array voltage < 32V): 10 seconds.
Turn off delay (array voltage > 32V): 1 minute.
No timer function.
d Debug mode
Same as L mode but without delay of 10s/1min
4