LED lights

[Robinson]

Hi, just wanted any details really regarding testing led's.....got go look at a job where a swimming pool room's led's are down....Supposed when installed shortlly after not working...been told they had 1 transformer running a fair few...obviously i need go look and get full visual but though maybe there any advice i could get on maybe testing led's or anything else...i know mostly they need to be wired in series. correct ?
But at mo sounds like someone has just tryed slapping any low voltage MR16 transformer on a group and it not worked........

Also poss could explain exact difference between LED driver and a transformer (is one circuit board other copper winding) if that makes sense at all

thanks guys

 

[ian.settle1]

Hi, just wanted any details really regarding testing led's.....got go look at a job where a swimming pool room's led's are down....Supposed when installed shortlly after not working...been told they had 1 transformer running a fair few...obviously i need go look and get full visual but though maybe there any advice i could get on maybe testing led's or anything else...i know mostly they need to be wired in series. correct ?
But at mo sounds like someone has just tryed slapping any low voltage MR16 transformer on a group and it not worked........

Also poss could explain exact difference between LED driver and a transformer (is one circuit board other copper winding) if that makes sense at all

thanks guys

The are 2 ways which LEDs are wired using LED drivers..

1-If the are connected in series then they require a constant current driver which is normally 350mA.

2-If they are wired in parallel (like normal lights) then they require a constant voltage driver

 

[bugsy]

Testin LED 's is a pain as they are diodes, if the lot's dropped out either the driver has gone t*** uo or there's a break betwwen the first LED and the driver , if it's the the driver ther's a good possibliity it has'nt been correctly assesed , most LED'd require constant current transformers,
1. how many are you running on the driver
2. what's the rating of eacjh LED
3. what device are you using to control them?

 

[Robinson]

Thanks guys for pointers, ! gonna get back to this thread with some more details by wed's so please once i get an outline and visual i will post it

 

[bugsy]

If there wired in Cat5e don't be suprised

 

[Robinson]

Right here goes guys....ive got swimming pool which had 2 x 300W 12V Certikin (PU9) Sealed Beam Underwater Lights
http://www.aspectspools.co.uk/300w-12v-certikin-pu9-sealed-beam-underwater-light

...fed from 2 x Certikin 300W 12V IP65 Light Transformer PU11S...
Certikin 300W 12V IP65 Light Transformer (PU11S) | by Aspects Pools

The client has had someone switch the lamps for some posh Seamaid PAR56 LED Remote controled
LED Swimming Pool Light - Replacement bulb for existing lights, change the exisisting bulb 300w or Halogen bulb to Led,

Question is : The output from the transformers are for 300w each lamps ........the NEW LED's are 12v 25 w consumption and supposedley designed to just replace traditional PAR56 lamp...

can this be so. can i just leave these transformers to run these new LED's ?

They installation that has been done is all up to spec and seems like good job, although we do have a pool of water in one of poolside IP junction wells but gonna sort that....