Light works on
the principle of detection of ambient light level to turn on or off
automatically. A super sensitive LDR is fitted inside the electronics and
facing the front. It senses continuously the ambient light level
(ALL). When ALL reaches a predetermined level at dusk, it gives the
command to electronics to turn on the light. In the similar manner,
when ALL increases at dawn, it controls the unit to be switched off.
This repeats itself day after day in its life time. During emergencies,
when distress / panic button is pressed, it starts flashing to attract the
Can be mounted
horizontally or vertically.
porch and your house number
Automatically turns on the CFL ( 11W, 4-pin) at dusk and
switches off at dawn.
satisfactorily within wide voltage fluctuations from 150V to
electronic ballast as against copper choke or magnetic ballast commonly
used. Saves precious electricity as loss of power in magnetic choke is totally
Power Factor Correction
circuitry incorporated on board to achieve PF better than .95.
Snubber and EMI/RFI
filter are added to avoid the interference from electromagnetic and
Automatic control for dusk to dawn
operation is coupled with flashing operation during emergency.
distress switch is pressed, the same CFL starts flashing during night to
attract the attention of the passers by.
Numbers are supplied in
the form a vinyl sticker sheet.
Fully complies with
EN60928 for safety.
to last life time without fading, cracking, rusting or peeling.
in pure polycarbonate body
without use of single screw.
visible from a distance of upto 170 feet.
Entire electronics is housed on a single Glass Epoxy PCB
with green masking and potting for weather resistance and fitted in side
the enclosure. This is Controlled Electronic Ballast (CEB-114). This is 3-in-1 unit comprising
Electronic Ballast, Dusk to Dawn Controller and Distress signal generator.
4-pin CFL holder is also housed in the same enclosure. The LDR sensor is
also housed in side the unit. The entire assembly of CEB-114 can be slide
fitted in side the box without any screws. It has four wires coming out
from the bottom. A pair of Red and Black goes to mains power while Grey
wires are meant for distress switch.
No internal wiring is necessary as it is an integral unit.
CEB-114 uses electronic ballast of A3 type with built-in PFC
(Power Factor Correction) circuitry. The CFL is instantly on without
flickering even at voltages as low as 170V where a normal magnetic ballast
will fail to fire the tube. The ballast operates at ultrasonic frequencies
hence the power is continuously saved for the given lumen output.
The sensor monitors the ambient light level and when it is
dark, the controller inside sends the command to switching circuitry to
make CFL on. Simultaneously,
distress switch is also enabled.
CFL will start flashing if Distress Switch is pressed on. This will attract the attention of
the people outside. Since the
CFL operates quickly without any firing delay, flashing rate is very fast
like an incandescent bulb. This facility of Distress signaling is
obviously possible during night (dusk to dawn) only.