Mr. Beams MB 980 Battery-Operated Indoor/Outdoor Motion-Sensing LED Ceiling Light, White
- Case Size: 12
Motion-activated bright ceiling light that installs in minutes without wires. Great solution to light up closets, attics, showers, sheds, pantries, gazebos, rv’s, boats and many other dark areas. Bright led never needs to be replaced. Motion sensor detects at 15 foot to turn on light automatically. Ceiling light turns off automatically in 30 seconds if no motion is detected. 80 lumens lights up an area of more than 150 square feet. Light sensor keeps light off during the day. Weatherproof for outdoor applications. Operates more than one year on a set of 3 C batteries (not included). 1-year limited warranty.
Dimensions: 4.75″ x 4.75″ x 2″. Weight: 0.45lbs.
Recommended Price: [wpramaprice asin=”B002FCNLHK”]
1 Comment
SCTigerJeep
Complete Darkness Overcome,
I solved this problem by modifying the unit’s photocell which is located beneath the semi-transparent dome. Invert the unit on a soft cloth so as not to scratch the lens. Remove the “guts” of the unit by carefully releasing each of the four snap clips, adjacent to the batteries. This in effect removes the exterior case from the batteries and circuit board.
If you examine the circuit board, you will notice two components that sit below the milky dome. One is the circular motion detector and it has a small square window. The other adjacent component is the photocell which detects the ambient light level. It sits closer to the circuit board with a back and forth grid like element on its top.
This photocell must be completely isolated from receiving any light. Using black vinyl electrical tape, I cut small pieces of tape and placed them around the bottom of the photocell to cut off any light passing up through the circuit board and reaching the sensor. I even slid a small piece below the photocell, between its two leads just to be sure. Next I fashioned a small cylinder of tape just large enough to fit around the photocell. After closing off one end, I slid it over the photocell, kind of like a little hat and secured it into place.
Technically the photocell will now present only a small resistance to the circuit even in bright light. Assemble the unit taking care to position the milky dome back over the motion sensor and the photocell.
Mine now triggers on perfectly regardless of the ambient light in the bathroom when I stand in the bathtub to take a shower.
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