After I Buy Sunforce 82156 60 LED Solar Motion LightPros:
Nice, bright light - better than expected.
Adjustable settings for: 1. what constitutes dusk when the light begins to motion sense; 2. how sensitive the IR detector is to movement, and; 3. how long the light remains on.
Selectable modes for auto, on, or off.
IR sensor is adjustable up / down and left / right, separate from light.
Power cord from solar cell is very long and gives you more flexibility on installation locations.
Cons:
Mounting hardware (not the units themselves) is not galvanized or otherwise weather resistant (e.g. stainless). I used a silicon based caulk to cover screw heads and seams.
Light is only adjustable up / down so getting the light to face where you want may involve mounting additional hardware.
Adjustable settings have considerable hysteresis. (I was up and down a ladder many times)
I bought three of these; two of them took considerable time (15+ minutes) to start turning off in Auto mode, even with the sensitivity and time adjustments minimized. The third worked as soon as the switch was turned. All three had been given the same amount of time to charge beforehand (5 days).
I took one star for setup because I had almost given up on two of the three purchased. The adjustment settings were initially unresponsive and the lights just stayed on in Auto mode. When they finally turned off, everything started working as indicated. The adjustment knobs are not linear, so I recommend getting a second person to perform a walking test so that the first can stay on the ladder to tweak the settings. Also recommend using some sealant on the mounting hardware to keep it from rusting. I kept picturing two years from now: we're inside and something hits the side of our house and it looks like someone is shining a flashlight in the window as one of these lights breaks away and dangles from the power cord because of cheap hardware.
Once we were able to move beyond the setup and enjoy them, these lights redeemed some stars for how bright they are and the fact that they're solar with motion detection. I truly didn't expect the intensity to be this good and to last for so long. I'm sure this will vary with the availability of optimal charging sunlight, but the performance, brightness, function, and price are well worth it so far.
FYI - the solar cell mounts to a ball-joint bracket on one of the long sides. The quickest comparison that comes to mind is the rearview mirror in a car. Except the range of movement is better on the solar cell. 360 degrees of rotation, and 180 degrees of tilt. Combine this with the length of power cord supplied and you have greater latitude on where you can install everything.
Very happy with this purchase and would definitely recommend it to others. Feel free to respond with any questions or feedback. I'll try to remember to post a follow up in 6 months and see how they're holding up.
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