As far as I know, there is nothing even close to this on the market.
I have had a few of these for many years. None have ever failed. Setup is straightforward and programming is reasonable.
Having the lights automatically adjust for sunrise/sunset is great. If we leave the house at 4pm and come back at 9pm, the front lights are on.
There is a little bug in the programming (TI034). It screws up if it is programmed to turn on before midnight and turn off after midnight. I forget now how it screws up, because I changed mine to turn off just before midnight. I think it just stayed on.
I would like more flexible programming, but that usually comes with complexity. There isn't much space there for a display.
1. Be able to set an offset (sunset +/- nn minutes).
2. A random feature where it would vary the actual on/off times by +/- nn minutes. This is a minor point, because it already vary some because of changing sunset/sunrise times.
3. Automatic adjustment for daylight savings. That may be a problem, because they could change the cutover date, so maybe it's better as it is.
This also allows me to synch the clock twice a year. The timer does not keep perfect time, which is surprising. I would think it could use the 60 Hz from the grid to stay perfectly in time. Maybe an upgraded model could include a received for the time signal from Colorado? :-)
This is one of my favorite gadgets. It used to be very hard to find. I am glad that Amazon is now carrying it. I often give them away as gifts.
07/30/10 Update: Aube makes quite a few models. It took me awhile to figure out the differences and I bought one wrong model. Some of them are designed for more heavy-duty work and controlling motors (033 & 035). I see that they now have a few new models with more programming options and higher wattage ratings. Most of mine are the 034. These are fine for porch lights. Our front porch light is also wired in with the front outside plug so it can control external Christmas lights. The 500 watt max for the 034 is limiting. I may get the new 071 or 072 to replace that one.
Here's a summary of the model from the Aube website (aubetech dot com). Please excuse the (. . .). That's the only way I could find to make a table.
. . Model . . . . . . . . . . . Power . . . . . . . . . . . . . . Programs
. TI032-3W . . . 500 W @ 120 V, 40 W minimum . . 7 manual
. TI032-3W-5 . .500 W @ 120 V, 40 W minimum . . 7 manual
. TI034-3W . . . 500 W @ 120 V, 40 W minimum . . Sunset/sunrise
. TI070-3W . . . 500 W @ 120 V, 40 W minimum . . 7 manual + Sunset/sunrise
. TI073-3W . . . 500 W @ 120 V, 40 W minimum . . 21 manual + Sunset/sunrise
. TI033 . . . . . . 2400 W max., 1 HP @ 120 V . . . . 7 manual
. TI035 . . . . . . 2400 W max., 1 HP @ 120 V . . . . Sunset/sunrise
. TI071 . . . . . . 1800 W @ 120 V, 0 W minimum . . 7 manual + Sunset/sunrise
. TI072-3W . . . 1800 W @ 120 V, 0 W minimum . . 21 manual + Sunset/sunrise
The 3W means 3-way. The -5 is almond color.
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