Author Topic: 48 volt lighting options  (Read 423 times)

harryn

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48 volt lighting options
« on: December 07, 2021, 05:57:31 PM »
Hi - looking around for 48 volt DC  lighting options.

Would like to power them directly from a 48 volt nominal battery pack, which might be AGM or LiFe so the voltage can swing up to nearly 60 volts.

I found a few such as watt-a-light  which is an LED package in an Edison format bulb.

Would like to find some more options such as strip lighting or fixtures, ideally some that are fairly tough for mobile use if possible.

I have already done some projects with DC - DC converters down to 12 and 24 volts to power lighting, but it would be nice if there were some that ran directly.

Open to ideas.

Thanks

Harry

mike90045

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Re: 48 volt lighting options
« Reply #1 on: December 07, 2021, 10:19:08 PM »
i've used in the past, many 12-28V ac or DC LED bulbs with drivers in them. Never looked much for 48V stuff, and I've made some 200W 48 - 12V modules from a factory "brick" converter
http://tinyurl.com/LMR-Solar

Classic 200| 2Kw PV, 160Voc | Grundfos 10 SO5-9 with 3 wire Franklin Electric motor (1/2hp 240V 1ph )| Listeroid 6/1, st5 gen head | XW6048 inverter/chgr | midnight ePanel & 4 SPDs | 48V, 800A NiFe battery bank | MS-TS-MPPT60 w/3Kw PV

harryn

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Re: 48 volt lighting options
« Reply #2 on: December 08, 2021, 10:19:46 AM »
Thank you for the reply.

I am currently using 48 - 12 and 48 - 24 volt DC converters for lighting projects.  (Buying them )

Was just hoping that since there are quite a few 48 volt battery packs being used in the world that there were LED drivers and related for them by now.

Most people use 12 volt in conversion vans and there is a lot of 24 volt in marine.  I try to use 48 volt as much as possible as it is super convenient.

Will keep a look out for options.

Harry


ClassicCrazy

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Re: 48 volt lighting options
« Reply #3 on: December 09, 2021, 09:50:56 AM »
You could make your own LED lights to run direct off 48v .
There are a lot of LED calculators on internet  that would tell you the correct resistor values to use.
It really seems a lot easier though to just wire the lighting circuit up using a DC to DC converter .
That is how I do it  here .
I just did quick search on ebay - there are 48v bike lights there
quick search on aliexpress shows 48v led light bulbs
DC/AC12V-85V Led bulb only can be used in DC12V-85V
https://www.aliexpress.com/store/group/AC-DC12-85V-LED-Bulb/2339028_10000000106284.html?spm=a2g0o.store_pc_home.smartGrouping_869580385.10000000106284
tempted to get a couple of those for myself !

Larry

« Last Edit: December 09, 2021, 09:56:45 AM by ClassicCrazy »
system one
Classic 150 , 5s4p  Kyocera 135watt , 12s Soneil 2v 540amp lead crystal for 24v pack , Outback 3524 inverter
system two
Classic 150 ,5s 135 watt Kyocero , Jakiper 48v LiFePO4 , Outback VFX 3648 inverter
system three
Midnite KID MPPT 24 DC in to  12 volt AGM batteries

harryn

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Re: 48 volt lighting options
« Reply #4 on: December 10, 2021, 01:11:57 PM »
Thanks - yes I have built LEDs strings, drivers, and resistored light strings in the past - 17 years ago as a hobby.

I just do the calculations by hand - easier for me.

Mostly just lazy and busy right now.

There is a pretty wide voltage swing on 48 volt battery packs, especially the AGM ones going from cold charging conditions to hot / depleted state.  Can easily go from 60 to 48 ish or less, plus voltage spikes, so a real driver based solution would be nice.

Watt-a-light sells a similar bulb.  I don't buy off of the ali  site or similar.  There is enough fraud on other on line sites that are considered "relatively safe", but thanks for the look.

ClassicCrazy

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Re: 48 volt lighting options
« Reply #5 on: December 10, 2021, 01:15:39 PM »
Thanks - yes I have built LEDs strings, drivers, and resistored light strings in the past - 17 years ago as a hobby.

I just do the calculations by hand - easier for me.

Mostly just lazy and busy right now.

There is a pretty wide voltage swing on 48 volt battery packs, especially the AGM ones going from cold charging conditions to hot / depleted state.  Can easily go from 60 to 48 ish or less, plus voltage spikes, so a real driver based solution would be nice.

Watt-a-light sells a similar bulb.  I don't buy off of the ali  site or similar.  There is enough fraud on other on line sites that are considered "relatively safe", but thanks for the look.

I have never had problem buying from Aliexpress or Ebay .
I might get some of the bulbs so will find out how good they are.
Larry
system one
Classic 150 , 5s4p  Kyocera 135watt , 12s Soneil 2v 540amp lead crystal for 24v pack , Outback 3524 inverter
system two
Classic 150 ,5s 135 watt Kyocero , Jakiper 48v LiFePO4 , Outback VFX 3648 inverter
system three
Midnite KID MPPT 24 DC in to  12 volt AGM batteries