Bosch Aegis Superled, Installation Instructions Manual, Page: 11 / 18

11
Photocell sensitivity
To adjust photocell sensitivity first remove the sealing screw, then adjust the
potentiometer to turn the lamp on at the desired lighting conditions, using a
thin (maximum 2.5mm or 0.1inch diameter) flathead screwdriver. Turn the
potentiometer fully clockwise to disable the photocell.
Photocell operation
The photocell is designed to automatically switch the lamps ON at dusk and
turn OFF at dawn. The potentiometer factory-set at mid-point 500 Lux ON
and 850 Lux OFF (approximately). A high degree of hysteresis is
incorporated to avoid ON/OFF switching in marginal light conditions.
Power adjust
To adjust power first unscrew the sealing screw. The potentiometer is
factory-set at the maximum calibration point (fully clockwise). To decrease
the power turn the potentiometer counter clockwise, using a thin (maximum
2.5mm or 0.1inch diameter) flathead screwdriver.
Hi
Power
reduction
Fig 7: Adjustment of the output power
Fig 6: Adjustment of the photocell sensitivity
Turn clockwise to
increase photocell
sensitivity
Photocell will switch lamp ON
earlier (at higher light levels)
Photocell will switch lamp ON
later (at lower light levels)
Remove sealing screw for access to
photocell adjustment potentiometer.
NOTE:
Replace screw after adjustment
to ensure IP67 protection
NOTE:
Replace screw after adjustment to
ensure IP67 protection
Note:
Power can be reduced
by up to 85% if image
over-exposure occurs.
Below 85% reduction
the LED’s will oscillate.
Factory-set at 100% power rating,
potentiometer turned fully clockwise.