LED Problem, help please!!!

[Gringoking88]

Hi all,

Hoping someone can help with the below and excuse my novices!!!!

I have 8 Parathom LED spot 111 50 advanced lamps wired in series, they are each 8.5w and are replacing existing halogens. I am struggling to find a driver that is able to run them all and have spoken to Osram who were no help at all. I have found the varilight YT150Z (Premium Electronic Lighting Transformer 0w - 150w - https://www.tlc-direct.co.uk/Products/LTYT150.html) would this be suitable or can someone please recommend something that would be suitable please?

Many thanks and apologies if this is a very stupid question.

Martin

 

[amlu]

had a look on the Osram site, those seem be running off 12V AC.
Why you wired them in series??? That will complicate things a lot, you will need some 50-80volts to run whole lot.
If done in parallel configuration a standard 230-12v transformer rated above 68 watts (8 lamps rated 8.5 watts each = 68 watts) should do the job.

 

[HandySparks]

Wire the lights in parallel.

The 12V 150W electronic 'transformer' may well do the job. However, its output won't be at 50-60Hz as specified for the lights. This may not matter. If it does, than an ordinary traditional transformer would do the job:
Toroidal Lighting Transformer 1 x 100w Output - https://www.tlc-direct.co.uk/Products/TLT100slash1.html

Pretty certain it'll be 12V output (it doesent seem to be stated), but check with TLC.

ps, don't post the same question twice.

 

[dmxtothemax]

those power supplies are NOT 12vdc output, they are a pulsating 12v
sort of in between DC and AC.
as the Parathom data sheet does NOT specify DC only
I can only guess that they will work But you will NOT get full life from them
If long term reliability is important ?
Then use a 12vdc regulated power supply.
specialist electronic suppliers will have them.

 

[amlu]

those power supplies are NOT 12vdc output, they are a pulsating 12v
sort of in between DC and AC.
as the Parathom data sheet does NOT specify DC only
I can only guess that they will work But you will NOT get full life from them
If long term reliability is important ?
Then use a 12vdc regulated power supply.
specialist electronic suppliers will have them.

Manufacturers datasheet says 12V with operating frequency 50-60Hz.
Looks more or less AC to me.

 

[dmxtothemax]

As I said
It will work
However they last much longer on a 12v pure DC
as compared to a pulsating 12v supply.