StumbleLight(TM) (Philips # BWG756) is a motion-activated night guiding light designed to turn on when a hotel guest steps out of bed. It is designed to be placed under a nightstand or on the wall to illuminate the path at night. StumbleLight uses a warm white LED source and has a remote motion-sensor and photocell. StumbleLight has a photocell that senses the light level and will not operate if the room is not dark. Upon detecting motion at night, it instantly provides light at full intensity for 12 seconds. If no motion is detected for 12 seconds it slowly fades to off. StumbleLight is a two piece unit. The PIR (Passive InfraRed) / photocell unit can be placed up to 6' from the light. A connection cable is provided. Includes 9Vdc 300mA wall transformer, which plugs into the sensor, instructions and mounting hardware. Plastic body, brushed aluminum finish. Easy installation. Low maintenance.
LED light source: 4 ultra-bright warm-white LEDs, 3100K. 55-65 Lumens. 2W.
Dimensions: Light - 8" x 1.75" x 1"
PIR/photocell - 3.75" x 2.25" x 1"
Customer Comments
Donald Carter from Southern California
CareGlow Output Mod.
A simple way to provide an output signal when the LED is active would be to place a PNP transistor in the wiring between the power adapter and the LED assembly. Place a 10 ohm resistor from the base to the emitter of the transistor. Connect the emitter of the transistor to the positive lead of the adapter. Connect the base of the transistor to the positive lead of the LED. When the LED is ON, the current through the resistor will produce a voltage drop that will forward bias the the transistor and switch it on. The collector of the transistor will switch to + 9 volts while the LED is on. The turn off of the LED is not a sudden turn off but a slow dimming process. This should be considered when using the output signal to control other devices. The dimming is most likely accomplished by pulse width modulation of the LED at a high frequency.
A customer from Lincoln, NE
Disregard Review, responding to Ken
Assuming the brains of the device are all in the motion sensor part, it will probably work for that, Ken, just use the signal out of detector to trigger the solid state relay. Check the polarity of the output first, though. LED's draw very low power, if I were you I would just leave them on all the time and skip the controller, less to go wrong, plus you aren't really saving much, if any, power by running the controller AND the LED's instead of just running the LED's all the time.
Ken Nelson from Montana, USA
All I need?
I am looking for a way to drive LED stair lights and this seems like a nice little package. I would like to use just the sensor to trigger a solid state relay driving my power supply. Sounds like the sensor unit is self contained and I would like to tap into its output. I am an avid tinkerer but this is at the edge of my self taught electronic skills. Does the idea seem sound?
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