LED strip lights that run off 38V, any idea for power source?

[Welshie]

The 4 vaporproof LED strip lights in my garage were replaced FOC by the retailer when one started blinking and they decided to replace all 4 now, rather than wait for the others to go.

The LED strip itself is fine, so I took them out of each light before throwing the rest away as they could be useful in my trailer. However, the voltage converter box output at 38V it seems (I thought all LED lights were a max of 12V). I looked around for 38V power banks and they are expensive. The closest Ive gotten is connecting 4 x 9V batteries together (so creating 36V) so I can either find away to package that neatly or ask here first if anyone has any ideas better to cheaply power them?

 

[Metal-Marc]

Get new leds

 

[Welshie]

Get new leds

Well, I think you missed the point of my post. I have new lights for the garage and wanted to repurpose these, but it sounds like there isn;t a practical way to power them so I'll through them in the trash.

 

[TobeyA]

38 does sound like a weird voltage. If they work on 36v, and you need capacity, you could use 3 small 12v batteries. Like from a UPS. About $25 ea on Amazon. Then you have to keep them charged. Wouldn't be worth the effort for me.

Or is this a travel trailer where you'd have 120v? If so, here's a 36v power supply. Better searching might turn up a 38v supply.

ALITOVE 36V Power Supply 4A 144W AC/DC Adapter 100~240V AC to DC 36 Volt 4 Amp Converter 36 vdc 4A 3.5A 3A 2A Transformer with 5.5mmx 2.5mm Plug for LED Lights Inkjet Printer Laser Engraver https://www.amazon.com/dp/B07WNST3BG/?tag=atomicindus08-20

 

[cybrdyke]

You dont have all the info you need. You cant simply hook them up to 36v and expect them to work. Your power source needs to have the correct drive current for what the diodes can handle. On the dead power source, is there any label information? I'd be looking for something called "output current" or " I out" or some such. The figure should be in milliamps or mA.

 

[Bert_]

The LEDs will clamp the voltage. You need a fixed current source

 

[Ole Slewfoot]

Try them on a 12v battery, try the other way if they do t come on.
My LED headlights are fine from 9 to 36 volts DC.

 

[tfi racing]

A lot of LED fixtures use these drivers, have a gander and see if you can find something that works.

https://www.digikey.com/en/ptm/t/thomas-research-products/led-drivers-overview

 

[walta]

My wild guess is your LED module has groups with a number of LEDs in serries with a tiny resister and several groups in parallel. The power supply that drives the LED will provide a constant currant to the LEDs and adjusts the voltage within limits to make the required current flow.

Please post a photo of the failed power supply.

This week I had the second failure of a power supply of one of my 25 Winplus brand 4-foot vaporproof LEDs fixtures that are 6 years old. Both lamps failed with the LEDs blinking.

My LEDs old driver was labeled 24-28 Volts 1600mA.

I found this 1500mA constant current power supply on Amazon for $17 It has been working for a day now.

https://www.amazon.com/dp/B01N374QPE/?tag=atomicindus08-20

Walta