Hello,
I am an artist with little electronic knowledge, but have been researching making a slide projector with a Led light (the unit will be inside a manually rotating wooden display case). I originally bought a really bright flashlight (a cree MC-e 750 lumens flashlight powered by 3x 3v cr123a batteries) thinking that I could go cordless - but afterwards realized that the power draw would suck the life out of the batteries in only a couple of hours, and I need this to work for 6 hours a day for about 4 weeks (and having the gallery staff change batteries every couple of hours is not a very good solution).
Any suggestions? Here is what I'm thinking so far:
OPTION 1: I have thought about somehow attaching a motion sensor so that the light would only turn on if someone is in the gallery - but haven't had much luck figuring out how I would do this.
OPTION2: Alternatively, I have found a rotating plug (from 360 electrical) that I could probably use to solve the rotating power supply issue (instead of batteries) - but in this case I need to learn how to connect the LED star to an appropriate 3v power supply (mA1000?) - and a driver perhaps?
From what I have been reading, I need to be careful here, and though I have found some answers, it would be great to have some confirmation/advice.
Or perhaps there is another solution out there?
I really appreciate your help!
Sarah Jane <snip>
I am an artist with little electronic knowledge, but have been researching making a slide projector with a Led light (the unit will be inside a manually rotating wooden display case). I originally bought a really bright flashlight (a cree MC-e 750 lumens flashlight powered by 3x 3v cr123a batteries) thinking that I could go cordless - but afterwards realized that the power draw would suck the life out of the batteries in only a couple of hours, and I need this to work for 6 hours a day for about 4 weeks (and having the gallery staff change batteries every couple of hours is not a very good solution).
Any suggestions? Here is what I'm thinking so far:
OPTION 1: I have thought about somehow attaching a motion sensor so that the light would only turn on if someone is in the gallery - but haven't had much luck figuring out how I would do this.
OPTION2: Alternatively, I have found a rotating plug (from 360 electrical) that I could probably use to solve the rotating power supply issue (instead of batteries) - but in this case I need to learn how to connect the LED star to an appropriate 3v power supply (mA1000?) - and a driver perhaps?
From what I have been reading, I need to be careful here, and though I have found some answers, it would be great to have some confirmation/advice.
Or perhaps there is another solution out there?
I really appreciate your help!
Sarah Jane <snip>
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