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I bought this to replace a Leviton PR180. The PR180 seemed to work on my 3 fluorescent lights (2 electronic ballasts, 1 magnetic), but then the bulbs started flickering and eventually went out.

The OSSNL went in with new bulbs and the difference was immediately noticeable. It was as if the lights were connected to a standard switch! Not a hint of buzzing. Definitely worth the extra money for this switch.

I was very impressed by the configuration options in this switch, and spent about an hour testing everything and getting it right. It's great!

02/17/2010 Followup review:
Lowering my rating on this switch because now it is behaving strangely. The switch is installed in my garage and typically the lights are off when I open the garage door, then they turn on as soon as I step on the garage stairs. Recently I had noticed that the lights were on when I arrived home from work, and were on when I would first open the garage door. The switch was not turning off the lights after the 30 second timeout! I tried the manual on/off, and that would shut the lights off but they would not turn back on when I moved in front of the sensor. Even though nothing had changed with the switch configuration, it began functioning strictly as a manual on/manual off switch. As a final fix attempt I ended up flipping the circuit breaker that the switch was attached to, and now it appears to be working again. We'll see how long that lasts. Very strange and frustrating.

03/10/2010 Followup review:
It seems this switch has now completely stopped functioning as a motion-sensing switch. Despite repeating my previous efforts, I was unable to get the lights to turn off in either auto or manual mode. Perhaps I got a lemon. I've uninstalled the switch and will be sending it to Leviton for a replacement under warranty. Hopefully the next switch does not have these problems.

04/25/2010 Followup review:
Leviton sent me a new swtich approximately 2 weeks ago (so expect a 1-month turnaround if you send in a defective switch). So far it is working properly. I will update this review again later after the new switch has been installed for a longer period of time.

06/14/2010 Followup review:
Well it's been two months since I installed the new switch, and it's still working properly. Seems I just got a lemon the first time.

I bought this switch for a coat/storage closet where the lights used to always get left on by the kids.

We had never used a motion switch before, so I ran to the store and just bought the cheapest one there (it was the Leviton model PR180), but it had some serious flaws. The first problem was that it didn't work right with fluorescent lights and the second problem was that it didn't always detect motion to turn on reliably depending on the ambient light level. After a couple of weeks of fiddling around with it, I finally gave in and bought this more expensive model from Amazon.

I'm happy to report that this switch solves both the flaws from the other switch. It works great with compact fluorescent lights and it is also very sensitive to motion - which is great in my case. It's also amazing how adjustable this thing is - it has settings for just about anything I would ever want to configure. It also looks great compared to the other motion switches I have seen.

Now that I've enumerated all the things I like about this switch, I should point out that I feel it is pretty over-priced compared to other motion switches. On the other hand, I haven't found any other switch that is as functional either. I may consider using them in other locations in the house once the price drops a bit.

I have tried multiple brands of motion detector light switches for sale at Home Depot and Lowe's. However, since I had changed the bulbs in my recessed lights to CFL'S, those switches wouldn't work properly (flickering, burned out bulbs). This switch does work with CFL's! I was worried about the 3-wire (not 3-way) setup of this switch, so I did check in my outlet box and there was a white wire (3 of them not used), 2 black wires (being used by the existing switch), a green ground wire, but no blue wire. I forged ahead and used the 2 black wires - one for new black, and the other for new blue - and connected the white and green wires. Didn't work! So, I switched the 2 black wires and TA DA! It worked. So, now I know which black wire is going to the load...
The only thing about this switch is that the timeout selection is a bit lacking (for me). You have a choice of 30 secs, 30 min, 1H, or 2H. I timed the 30 min and it went for 40 min, a bit long for my taste, but at least it works! :)
The nightlight feature is great if you plan to use the Manual-On feature rather than the Auto-On. No more people asking where the light switch is!
Time to start figuring out where else I want to install these in my house!

After buying a less expensive Leviton that didn't work well with my fluorescent lights,
it was very satisfying to see this one work flawlessly.

Recommended if you have fluorescent lights.

Using this for a closet light. Set the time delay to the minimum of 30 seconds--recommended for set up adjustments only, but seems to work fine as a permanent setting. The light comes on quickly and goes off 30 seconds after the door is closed. Works with all types of lights (ie fluorescent tubes).

I have purchased quite a few of these. I like that they can be setup in many different ways.

The night light can be set within a reasonable brightness range (or off, if desired) and the switch can be used in either an auto on or manual on mode.

I very much like the safety feature of a dim light that shines more brightly as it senses a person's approach. Further, I like that it can be set to go dim after a short time of no occupancy so it does not needlessly illuminate the night light.

Guests really appreciate these light switches since they otherwise are not sure where the switches are and nobody wants people falling down stairs in the dark or groping to find a switch in the dark.

I also like that the light extinguishes when there is enough "other" light in the room. Another nice feature is that if you depress the switch for ten seconds you can toggle the nightlight's glow between automatic dimming mode to continuous on mode.

Probably the feature that will offer the best payback is that if nobody is in a room for a preset duration the lights will turn off. This switch works with just about anything you can use a traditional wall switch for, be it LED lighting, compact flourescent, traditional fluorescent, small motors (think fans), and of course regular incandescent lights.

My only complaint is that once when there was a brief power interruption the lights turned on and then stayed on with nobody around. I am hoping that his was just a fluke with this one switch since the others in the house did not come on.

I bought one of these for our new house for the garage. It is perfect, no more fumbling for the light switch when your hands are full! We love it so much that we got two more, one for the laundry room and one for our walk-in closet. They were easy to install and they work with cfl bulbs. They are more expensive than other products but I couldn't find another product that works with cfls. Since incandescent bulbs will be phased out in 2011, it made sense to buy switches that work with cfls. All three units go off after 30 seconds so no more coming home from work to find that the closet light was left on for 9 hours.

I love this product! I purchased it to help my potty-training sons (ages 2&3) so that the light automatically comes on when they walk into the bathroom, it works like it said it would. I gave it four stars because there is no way to adjust the timer on a set number, my husband said that you just have to kind of guess the amount of time between the two settings and see if that is too long or short of an amount of time before it automatically shuts off. But this is only in our case, other things considered, it's a great product and I would definitely buy it again. I also love the night light feature, and the fact that it is an auto on and off switch. Can't beat that!

Leviton makes numerous models that all sound like they do the same thing - BUT they don't. this model (let me be clear: OSSNL-1DW) has Auto On/Off, and a night light. The internal controls have lots of adjustments for night light on/off, dim - bright, Auto on - Auto off etc etc. So a little patience is needed to get this adjusted as you need in YOUR application.

I have 3 of these now, and I've used them in various applications.
1) Makeup/vanity table - manual on, auto off (my wife would turn on the 400 watts of quartz lights and get distracted and leave them on for hours). I used the IPP15-IDW for this application - it's a little cheaper, but doesn't have the night light.
2) Garage - Auto on / Auto off, step into the garage, lights come on. Leave the garage, light go off in x minutes. We were always turning the lights on, but when the house door closed we never knew if the lights were left on or not.
3) Utility room - in a recent renovation, we lost one of the 3-way switches and had to rely on one switch at the end of the room, poking around in the dark to find the switch. Replacing that switch with one of these worked perfectly - enter the utility room sets the lights on, leave and a few minutes later off they go. The night light illuminates the room slightly until the auto on kicks on.

OSSNL-IDW has pig tail wires, and connects to the existing wiring with simple wire nuts, an alternate version IPP15-IDW (occupancy sensor - auto off ONLY) uses captive wires tightened with screws built into the body of the switch. Since the wires stick out the back, it was a little harder to cram the IPP15 switch into the box with the other existing wires.

And lastly, all these PIR wall switches REQUIRE a neutral (white) wire in the box. Take a peak by removing the trim plate and look carefully with a flashlight to confirm the WHITE neutral wire passes through the box. Many switch boxes have only the required BLACK and LOAD wires, and these switches will NOT work without the neutral. Some of the Leviton occupancy switches work with only incandescent lights, these will work with fluorescent and the newer CFL lights as well.

I purchased a Cooper infrared wall switch (K6105W) from Lowes and it did not work with CFLs. It would flicker and it interfered with our oven and microwave. I replaced it with the Leviton OSSNL switch and it works great. I don't use the nightlight feature. The blinds are great and the CFL lights comes on quickly and turn off WHEN THEY ARE SUPPOSED TOO. It is worth every penny to me simply because it works. The only complaint I have is that you have to remove the cover plate to remove the cover to get to the adjustments. I recommend leaving it off until you get the settings you want and then put both covers on.

This was the best priced IR switch for electronic ballast fluorescent lighting. I have used it about a month with no problems. I did have to adjust the sensitivity when the weather got warmer. I give it a four just because it is expensive compared to other Leviton switches.

I can't believe that nobody mentioned this...
The timer has a 30 sec setting (good for install test), but the next setting is 30 mins.
How about something in between, say 10 mins?
Another annoyance is that the sensor has a very narrow vertical coverage.
I have this unit in a laundry room. When I'm down loading the machines (front loader), the sensor doesn't see me and the lights go off (I have it set at 30 sec).
It's pretty pricey for what it is. Hard to pay for itself, especially if you have to set it to 30 mins or longer.
3 stars on function, but the high price brings it down to 2 stars based on value.

Let me say this is a quality product, fully adjustable 30 second up to 2 hours. Its also fully adjustable in its sensitivity. The one star reviews on this product sound to me like bad wiring or they didn't fully read the description. If you need a quality switch that can handle magnetic CFL ballast this is the answer for you. Zero flicker, Zero problems.

I wouldn't be writing this review if Leviton did a better job of enumerating the differences between their products. There are two versions of the nightlight occupancy sensor. This one is auto-on and auto-off, and the OSS10 family is just auto-off (manual on). They share the same documentation which is why I know about this product. The problem is that if you read the documentation closely, you see they have time delays of 30s, 30m, 1h, 2h. This is pretty useless to me. The 30s delay is usually just for testing to make sure things are adjusted properly. I can't for the life of me understand why you would want a light to stay on a minimum of 30m. How is that saving power? So, as a result, I purchased the OSS10 and dealt with the fact it's manual on.

I purchased this switch instead of a Lutron Maestro switch (of which I have several....). The main reason was because I wanted the "relay" type switching, which eliminates any problems with "minimum load" issues, or incompatibility with fluorescent lights and LED lights. I have had some problems with the Lutron switches in these applications, particularly in Lutron switches without the neutral connection...)

This switch has a nightlight that will brighten when motion is detected (when in auto-dim), and turn off during the day.
The nightlight can be set to auto-dim after 2 minutes, or always stay the same brightness (adjustable...but see below!!!)
It also has the ability to either turn on the main lights when motion is detected, or not. This feature is NOT tied to ambient light levels, however (when set to this mode, the light will ALWAYS turn on when motion is detected - I believe this to be the case, anyway - haven't had a chance to check it because it's so hard to adjust the controls once the wall plate is on...).
Finally, the main lights will automatically turn off after a preset delay of 30sec, 30min, 1hr, 2hr, with no motion detected.

First impressions:
1) It has braided wire connections rather than push-in or screw terminals (the Lutrons have the traditional pushin and screw terminals). This makes it seem cheaper and has a lower quality feel than the Lutron switches. But the braided wire connections are of adequate gauge, and they do work. Just make sure you have plenty of extra wire nuts from the hardware store (one size for 3-5 wires together, and another size for 2-3 wires). You will likely need a couple to connect the switch.
2) It has a fairly cheap feel. The blinders are easily adjusted, but I didn't find that the angle adjustment was sufficient for some applications. In mine, it was on. The adjustments are simple screw type adjustments rather than pure digital controls like the Lutron switches.

3) As mentioned, once the wall plate is on, it isn't possible to take off the cover which covers the adjustment controls. All adjustments are under a removable plastic plate below the motion sensor and above the bottom button.) I guess this is by design to prevent vandalism, but for my application it's just annoying. It would be fine if it could be easily adjusted upon first install...but because of the light sensor issue, some fiddling was necessary.

4) The push button switch works ok, but it is possible to push it in such a way that it "clicks" but doesn't actually turn the lights on. A bit annoying. Goes with the cheaper feel of the switch.

In spite of all of the above, I'm still ok with the switch. Again, the relay switching is nice (be aware, it does make a "click" noise, not too loud - slightly quieter than a standard Decora light switch being switched).

I did encounter one issue, though, which seems like a design flaw:

I could not turn up the LED nightlight to maximum brightness. It would brighten so much that the light sensor would detect light, and then turn off the LED. Then it would detect darkness, and turn on the LED. And so on. So the LED would blink on and off once I got above a certain brightness setting on the LED. Very annoying, and a very basic design flaw. Basically, there is no hysteresis built into the design to prevent this behavior - it's a very simple engineering problem to fix, but nothing was done with this light. As a result, I have had to leave the nightlight at substantially reduced brightness, so that this oscillation does not happen.

In combination with my experience with the Leviton ODS-10 (which has a light sensor with a serious problem - it's basically useless), I have concluded that Leviton has serious problems with their light sensor design.

In this case, I'm keeping this switch. It does what I need, and the nightlight, though I'd like it to be brighter, is sufficient, and I like the automatic turnoff feature.

However, if Lutron made a switch with the same features, with no minimum load requirement with integrated LED, I'd probably buy one of those instead...unfortunately they don't.

I really like this product. After spending hours trying to find a PIR switch that WILL use the neutral line, I found this.
The nightlight is adjustable, and gives off nice soft glow, you can dim it if you like also.
When it switches the light on, you hear a definite 'click' from the internal relay.
It does not reduce the amount of voltage that goes to the light, because it is powered by the line; thus making all types of lights function properly, especially fluorescent, CFL lights and fans.
My only complaint, is that I wish this had an 'on-off-auto' switch instead of a push-button. I like leaving the light on all day, and switching it to auto at night.
I will just add a switch to do that.
Otherwise its a great product and it does not deserve less than 5 stars.

Switch worked great compared to the cheaper versions. I have electronic balasts in my lights and it works good. Only reason for 4 stars is I wish it had a 15 min setting but overall I love it no flickering of the lights and comes on every time without having to mess with it. If i need another one this will be the one I buy.

It works, just as it suppose to do, and the most important it works with CFL and LED light bulbs. One thing I wish it would have a switch for always on regarding the movement.

Yes it is a bit expensive but it works really well. I installed this for my home garage and it works flawlessly. The ones they sell at Home Depot doesnt work with both electronic and magnetic ballasts.

Yep, it's pricey compared to the ordinary switches that don't work on newer fluorescent lights with rapid start ballasts, but it works beautifully and dependably and is easy to install.