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12vdc to 4.5vdc
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Topic: 12vdc to 4.5vdc (Read 2200 times)
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rvprepperwayne
Newbie
Posts: 3
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12vdc to 4.5vdc
«
on:
September 28, 2015, 06:12:21 am »
First time poster here but a long time watcher to the YT channel. I have a light that runs off of 6 AAA batteries but it runs off of 3 and the other 3 are in series. Here is a link to the light-
http://www.harborfreight.com/household/lighting/four-head-led-under-cabinet-light-96794.html
I would like to wire them into my RV 12v system but I need a way to drop the voltage down to 4.5 or 5v MAX. I scrap electronics for gold recovery and I keep all the parts that Is on a board in case I ever need something or want to tinker. I'm not electronics savvy by no means but I can fix some things that don't need major work. How and what can I use to drop the voltage down? I'm sure the draw is less that 1A. Thanks Wayne
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Psi
Super Contributor
Posts: 9889
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Re: 12vdc to 4.5vdc
«
Reply #1 on:
September 28, 2015, 06:19:41 am »
Get one of those cheap stepdown DC/DC modules from eBay.
They are like $3 and have a pot to adjust the output voltage
They are switchmode which is good. You want to avoid the opposite which is a linear regulator because it will get hot.
http://www.ebay.com/itm/2pcs-DC-DC-3A-Buck-Converter-Adjustable-Step-Down-Power-Supply-Module-LM2596S-/200964337125?hash=item2eca686de5
«
Last Edit: September 28, 2015, 06:24:34 am by Psi
»
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Greek letter 'Psi' (not Pounds per Square Inch)
rvprepperwayne
Newbie
Posts: 3
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Re: 12vdc to 4.5vdc
«
Reply #2 on:
September 28, 2015, 06:35:42 am »
something like this one?
http://www.ebay.com/itm/DC-DC-LM2596-Step-Down-Adjustable-Converter-Power-Supply-Module-1-3V-35V-LE-/251980864576?hash=item3aab3adc40
or would this one be better-
http://www.ebay.com/itm/5A-XL4015-DC-DC-Step-Down-Adjustable-Power-Supply-Module-LED-Lithium-Charger-/221888411623?hash=item33a99477e7
«
Last Edit: September 28, 2015, 06:45:42 am by rvprepperwayne
»
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rvprepperwayne
Newbie
Posts: 3
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Re: 12vdc to 4.5vdc
«
Reply #3 on:
September 28, 2015, 01:12:01 pm »
Ok I didnt see your link in the post. I did order one. Thank You for the input. Wayne
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nbritton
Frequent Contributor
Posts: 443
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Re: 12vdc to 4.5vdc
«
Reply #4 on:
September 28, 2015, 04:42:16 pm »
http://www.amazon.com/s/ref=nb_sb_noss?field-keywords=buck+constant
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