This unit only uses the power needed to power what is attached to it, correct? It isnt always sucking 15 watts?
1004397
This type of buck converter is not a constant power dissipation device. With no load it dissipates (as heat) less than 1 1/2 watts. As the output load current increases the dissipation increases as a function to it's efficiency. At full load it is about 85% efficient so it will dissipate (as heat) about 2.75 watts.
2064308
It doesn't use much, I think I noticed my power supply using about 150mA/.150A.
1048147
As far as I know it's purely tube driven. Not sure regarding the 15 watt version.
915574
I don't believe the amount of power needed makes any difference. It just acts as a connector between the power cord and the outlet, if that makes sense. So it connects them and cuts the circuit on and off at the designated times. I've been using mine constantly for several months now and it still turns on and off at the exact times I set it for.
1816890
This unit requires a power source. I would not purchase it. I have found better that would work for your application.
815155
I've been using it side by side with a digital usage meter provided by my utility company (SMUD) and it is always within 30 Watts (shows 30W less). Not a scientific test though :).
514062
No power is needed for this unit. You only need a water hose to hook up to..
167553
Standard 15A is what mine is plugged into. You can double check the specs to see the power consumption.
934070
A couple of things here to say... This unit should come with a supply... Seems like mine did. On that note, the unit take 15 watts or a little less than 1.5 amps (18 watts). I would get a 12 volt 2 amp dc switching power supply with a 2.1 mm jack on it. You want your load to only be about 80% of your supply. Another advantage to a switching power supply is that when the load does not require the full power (day time IR LEDS are off) the power supply consumes less energy. I would suggest getting a bigger power supply and a splitter and hook up several ... A 5 amp supply show power 3 of them. If the power supply you received with the unit is only 1 amp, it's already under powered. A couple of things here to say... This unit should come with a supply... Seems like mine did. On that note, the unit take 15 watts or a little less than 1.5 amps (18 watts). I would get a 12 volt 2 amp dc switching power supply with a 2.1 mm jack on it. You want your load to only be about 80% of your supply. Another advantage to a switching power supply is that when the load does not require the full power (day time IR LEDS are off) the power supply consumes less energy. I would suggest getting a bigger power supply and a splitter and hook up several ... A 5 amp supply show power 3 of them.... » Read More A couple of things here to say... This unit should come with a supply... Seems like mine did. On that note, the unit take 15 watts or a little less than 1.5 amps (18 watts). I would get a 12 volt 2 amp dc switching power supply with a 2.1 mm jack on it. You want your load to only be about 80% of your supply. Another advantage to a switching power supply is that when the load does not require the full power (day time IR LEDS are off) the power supply consumes less energy. I would suggest getting a bigger power supply and a splitter and hook up several ... A 5 amp supply show power 3 of them. If the power supply you received with the unit is only 1 amp, it's already under powered. « Show Less
1915572
Interesting question. Not sure what you mean by power. It runs off of 120 volts but the power is all the wonderful things it does.
934072
A couple of things here to say... This unit should come with a supply... Seems like mine did. On that note, the unit take 15 watts or a little less than 1.5 amps (18 watts). I would get a 12 volt 2 amp dc switching power supply with a 2.1 mm jack on it. You want your load to only be about 80% of your supply. Another advantage to a switching power supply is that when the load does not require the full power (day time IR LEDS are off) the power supply consumes less energy. I would suggest getting a bigger power supply and a splitter and hook up several ... A 5 amp supply show power 3 of them. If the power supply you received with the unit is only 1 amp, it's already under powered.
1969061
Don't know? Mine is a 400 watt and I have had no power problems, seems totally sufficient to do the job.
596328
It only draws what is needed. If it drew it maximum power all the time regardless of the load, it would be a pretty bad power supply.
612511
Not sure, I am only using about 15 watts in my application. You should be able to figure the power consumption based on the manufacture's specifications using Ohms Law.
1458579
Hi Jon,The unit is USB powered. You dont need a seperate power unit. The USB cable is included.
1648456
YES. It draws no power unless a device is attached. Cables only attached drew no power. I used a Kill A Watt to confirm. Hope this helps.
386079
Yes, that is how I operate the unit. Use a solar panel with a minimum power of 25 watts, attach it to a 12-volt car battery using a solar charge controller.