Re: Light for a gun safe


mike (spamme0@xxxxxxxxxxxx) writes:
> Chris W wrote:
>> I want to put a light in my gun safe that will come one when I open the
>> door. Since running power into the safe is more than I want to deal
>> with, it will have to be battery powered, I was thinking 2 to 4 AA
>> alkalines. Four LEDs should give me the amount of light I want. I also
>> want an automatic dimming, where the darker it is in the room the
>> dimmer the LEDs will be. Since this is going to run on batteries, I
>> want it to be as efficient as it can be. I went looking at data sheets
>> and found this,
>>
>> http://www.catalyst-semiconductor.com/documents/32.pdf
>> I was thinking of putting a photo cell in parallel with a pot to get the
>> value for Rset right Does this sound like a good plan or does someone
>> have a better suggestion? I am just getting into electronics as a hobby
>> so I'm not too familiar with what all is out there, I mostly just look
>> through the Mouser and Digikey catalogs.
>> Also it is my understanding that they are making LED's more efficient
>> all the time, can some one give me a good source for some of the newest
>> most efficient LED's? I only need 4 for this project, but I have
>> another project that will need a lot (around 100) and I don't want to
>> spend more than I have to. Also, both run on batteries, so the more
>> lumens per watt the better. Specifically I am looking for 5mm white,
>> red and green with a viewing angle of 45 to 60 degrees with maybe some
>> of the whites having a viewing angle of 30 degrees.
>>
>
> Sounds like a cool, but over-the-top application.
> I used to do a lot of this kind of stuff before I got old.
> Now, I'd just put a flashlight inside on the shelf and use
> the time I saved not building the light to go shooting ;-)
> mike

I figured I was missing something, that there was some reason why
there had to be a fixed lamp inside, and that it had to come on as
the door opens.

Yes, I'd just put a good flashlight inside, maybe even putting a bit
of rope on it (or chain if you want to get fancy) to attach it to
the inside so it will be harder for the flashlight to go missing.

Michael

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