Cheap Leviton R02-IPP15-1LW Manual-On Occupancy Sensor, Decora Passive Infrared Wall Switch, White Review
Great Prices on Outdoor Motion Sensor Lights.
I installed this automatic switch in a 40-person meeting room where the manual switch was very awkward to reach from either door. It has performed well for a year now, and prevents tripping up steps, and over folding chairs, and fumbling for the switch while carrying a load. The switch responds quickly to a wide angle of motion (nearly 180 deg.) and at least 30 feet away. I estimate that we've recouped the cost in energy savings by now. The only catch is that when the room is intended to remain dark (like for a candlelight dinner) the lens has to be covered; but just a little piece of paper taped over it works fine. I plan to buy more wherever there are several lights to control and a tendency to leave them on.
Before I begin, let me say that if you're going to do any sort of wiring project it's up to you to learn about applicable codes and regulations, from reliable sources. Do the job right. Get the needed permits and inspections. Get an electrician, if you have to.
I live in Alameda County, California, where we have to be Title 24 compliant. According to the city permit desk, and as I understand it, Title 24 dictates that all lighting in bedrooms etc. needs to be energy efficient. It also indicates that for a lighting fixture to be considered "energy efficient" it cannot be possible to easily swap out the efficient bulbs (LED, CFL, etc.) with something less efficient (incandescent). The upshot is that currently most of the lighting fixtures you purchase at the major home improvement centers cannot be legally installed in your home. Why? Because it's possible to remove the CFLs that come with the fixture, and use incandescent bulbs.
Fortunately, there's a way. Title 24 also indicates that any lighting fixture can be used if it is either (1) on a dimmer, or (2) on a manual-on occupancy sensor.
My wife and I were selecting ceiling fan/light fixtures for installation in our home. When I found out about Title 24 from the city permit desk, I was worried because the ceiling fan/light combos my wife had purchased at the local home improvement store were not Title 24 compliant (nothing they sold was), and she really wanted *those* fans and lights.
This switch saved the project. I purchased several of them, and wired them to the fan's light kits. This made the whole thing compliant, and they passed inspection. Installation of the switch is easy--just make sure to read the directions. Be aware that the switch takes up more space (volume) in the box than a regular toggle-type switch, so if your box is crowded you may have to install a larger box. Also, as this is an occupancy sensor it needs to be able to "see" most of the room to work as intended. Again, this is a *manual-on* occupancy sensor switch. The only way to turn the light on is to push the button. It will turn off automatically if no movement is detected for a period of time (so don't sit too still!).
The switches are nice. They don't really stand out, and after a few days we forgot all about them. The button has an LED on it, which makes it easy to find the switch in the dark. They seem to be well-built, so unless you're really whacking the button, it should last a while.
One more thing to be aware of: even when the switch is "off" there is still voltage on the hot switched wire. It's probably very low current (I didn't touch it to find out!) as it's not enough to light the lights.
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