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My favorite Light!
#11
(01-30-2018, 06:04 AM)GypsyDogs Wrote: Those are pretty kewl SWk.  I will remember them when I get around to redoing my onboard lighting. lol

I like the lights I use, because of the selectability from regular ON to Motion sensor.  Several folks at YarCamp saw me using them.  Open side door light comes on.  (without draining starting battery)  And turn themselves off if you forget to..

And, as an added bonus.. I put Velcro on some of the included little metal strips.. 

so I can, literally, stick them anywhere on the carpeted interior (walls/ceiling/doors) 

of the van.. or use the same magnet to stick them on the exterior of the van, under the hood.. where ever I want.  Need charging, just grab it and hook it up to a usb port. poof.

Also put one of the metal strips inside the battery /fuse box  (vhb tape) so night-repair can be easier.  Smile
I notice your lights have a frosty white lens. Have you ever taken the lens off to see how much brighter it would be? Seems the frost would kill a lot of lumens.  I do like the motion sensor and USB rechargeable  option. I guess according to what SternWake said, It would be best to charge as many USB charging items at the same time to get the most out of your inverter working. IDK.   TYVM !! David
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#12
My point regarding USB was that an inverter is not needed simply to have a USB source. lots of 12vDC to 5vDC products available. Much more efficient to step down 12.xvdc to 5vDC, as opposed to an inverter stepping up and converting voltage from 12.xvDC to 115vAC, then the USB source taking that 115vAC and converting it to 5vDC.

https://www.amazon.com/Cllena-Charger-Vo...oding=UTF8&pd_rd_i=B072FJRYSK&pd_rd_r=DBF59A0Z7SZ5J13JXB4Q&pd_rd_w=61yvK&pd_rd_wg=pcrmz&psc=1&refRID=DBF59A0Z7SZ5J13JXB4Q

That, and inverters turned on powering NOTHING, will likely use more electricity than the 12vdc to 5vDC source charging a phone or tablet.

My phone for example can only draw 0.98 amps max, at 5vDC.
This is basically 5 watts and I've not even bothered trying to measure input vs output.

My 400 watt inverter turned on powering nothing is 0.29 amps, at 12.8v. this is 3.7 watts consumed, doing nothing.

My 800 watt MSW inverter is 0.68 amps turned on, powering nothing.

0.69x12.8=8.83 watts consumed turned on, powering nothing.

If these differences in wattages make or break anybodys system, then they do not have enough capacity or recharging ability anyway, but it is wasteful to turn on an inverter, just to power a USB source, when almost any other option, and there are many, are significantly more efficient.

The same is true of laptop chargers, but they require ~19vDC. Much more efficient to step 12vdc upto 19vdc, than converting 12vdc to 115vAC, then the original laptop powerbrick/wallwart converting 115vAC to 19vDC.

Lots of laptop 'car adapters' available. If the latptop's original power supply is rated over 60 watts, avoid the universal laptop car adapters. Multiply output amps times output volts to get wattage.

If one plans on listening to radio, or watching over the air broadcast TV, then they should know that Inverters are electricaly noisy, and can make or break any given TV or radio station. Also many LEDs are electrically noisy too, but mostly those that say a wide voltage range, like 10to 30VDC.

Inverters are often seen as the solution to powering all stick and brick luxuries, but really they are basically throwing away 20% of electricity turning it to heat and noise, in the conversion from DC to AC.

I have two of them, but they are rarely turned on, unless that is the only option.
[-] The following 2 users say Thank You to sternwake for this post:
  • rvpopeye (02-27-2018), VanGrrl57 (03-01-2018)
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