12v 50w downlights that keep blowing

[supasparxs]

The Opps manager of a regular repeat customer of mine has some issues with the 12v 50w down-lighters in his kitchen and bathroom

each light is supplied by it's own 12v 50w transformer, but the same 4 (out of 8) lamps in the kitchen and same 2 (out of 4) lamps in the bathroom keep blowing.

the replacement lamps were bought at different times by different shops, so it isn't a bad batch of lamps.
anyone have any ideas?

 

[needasparks]

Are you sure its the lamps blowing (tested them) it could be a loose conection that makes again when they are moved when touched, over heating with insulation possibly. How long are they lasting ? are they going out together ?

 

[Dcf]

Check the pins on the lamp. If one is pretty black the lamp holder is faulty.the lv lamp holder was the weak link in the system as they have roughly 4A running through them. U see to get lamp holders with screws which used to be much better.

 

[supasparxs]

Thanks guys.
good thinking

 

[needasparks]

Probs like this you have to take a step back, roll a smoke and drink tea. Only then the answer comes.

 

[supasparxs]

I gave up smoking 3 years ago,
I gave him a costing to change all the lights to GU10 LED down-lighters

 

[billmicheals]

gu 10 led down lighter in a bathroom any where near a bath or shower ?

 

[supasparxs]

Yes one is directly above the shower,
(the existing and the replacements were and are the IP rated version for use in bathrooms)

 

[leonard290]

get rid of dichroic lamps get to hot and waste of energy.replace lamp not fitting with 4.5watt led,suggest warm white.about £9.00 each.50000hrs 4 year gaurantee

 

[Dunc]

gu 10 led down lighter in a bathroom any where near a bath or shower ?

Recessed (ceiling) lights are classed as being outside of the zones altogether.

 

[gbert]

Most gu10 led downlighters are directional ie they give a beam, not a spread of light i would go with warm white CFL lamps 7 to 13 w

 

[lauriehurman]

LEDs;
I've tried "daylight" they are very efficient in Lumens/watt but they were just too "blue" in a white bathroom.
I tried "warmwhite" - they were too yellow for the bathroom, would look good in a living room.
I'm now on "neutral white" - they seem best.

Halogens;
"dichroic" lamps only reflect part of the spectrum downwards. They make the fitting run very hot indeed. I've replaced die-cast Al fittings which were completely distorted. Aluminium reflector Halogen lamp reflect the whole spectrum and make the fitting and the lamp run cooler and may stop the lamp giving up so frequently.

CFL;
Take time to warm up and produce sufficient light. Fine in a living room but you don't want to walk into the bathroom to have a **** and then have to wait for the lights to warm up

IP65 fittings are great, very safe, but they do let less of the light downwards and trap more of the heat.
Whatever you choose don't forget your fire hoods.

Laurie

 

[lauriehurman]

Recessed (ceiling) lights are classed as being outside of the zones altogether.

MY big worry is that the latest downlight fitting do not have a glass between the lamp and the room, and when you then fit an LED you have a gap between the lamp and the fitting. Not even IP4X.

I'm sure you are more experienced than I am so your thoughts on this are welcome.
Laurie

 

[supasparxs]

MY big worry is that the latest downlight fitting do not have a glass between the lamp and the room, and when you then fit an LED you have a gap between the lamp and the fitting. Not even IP4X.

I'm sure you are more experienced than I am so your thoughts on this are welcome.
Laurie

The original light had a IP4X light directly over the shower and the other three normal fittings. I felt that they were yo close to the shower so I upgraded all four fittings to IP4X fittings.

 

[lauriehurman]

The original light had a IP4X light directly over the shower and the other three normal fittings. I felt that they were yo close to the shower so I upgraded all four fittings to IP4X fittings.

You mean IPX4 but we all know you meant that