LED driver fan

[scotcruz]

Hi folks,

I have recently installed LED strip a on the ceiling.. I have used a 250W Led Driver (power supply) and fan is always on.. which is very annoying.. it will be under the plasterboard so assume it will be less noisy when it's all complete but should the fan always be on?

Is it normal? Please advise

 

[winston1]

250w driver? Do you really have 250w of LED strip? Hint, you will need very dark sunglasses.

Get a driver more suitable for the actual load and it probably won’t have a fan.

 

[scotcruz]

250w driver? Do you really have 250w of LED strip? Hint, you will need very dark sunglasses.

Get a driver more suitable for the actual load and it probably won’t have a fan.

Its a 17m strip with 11w per meter.. (also factoring in voltage drop) are you saying I don't need 250w ?

 

[aptsys]

The fan is there to run the power supply within spec, there is a ventilation requirement in the datasheet and I wouldn't recommend burying something like that within a plasterboard void. You could segment the LED strip and use multiple drivers instead.

 

[scotcruz]

Yeah, that what I was thinking.. get 2 X 120w ones without a fan..

 

[BS3036]

Will you be able to access these drivers when they go faulty?

 

[scotcruz]

Will you be able to access these drivers when they go faulty?

Yes.. have installed an access panel.

 

[winston1]

Its a 17m strip with 11w per metre.. (also factoring in voltage drop) are you saying I don't need 250w ?

Are you sure about that? 187 watts of LED lighting ia an awful lot.

 

[scotcruz]

Are you sure about that? 187 watts of LED lighting ia an awful lot.

Yes RGBW led strip is rated at 10.8w per meter.. I have 17 meter strip which is 183w plus 10% for voltage drop therefore total is 201watts

 

[333rocky333]

Is this 12 or 24 volt, how have you supplied it, if from one end, i might be concerned about the current at the start of the tape

 

[winston1]

Yes RGBW led strip is rated at 10.8w per meter.. I have 17 meter strip which is 183w plus 10% for voltage drop therefore total is 201watts

Voltage drop will reduce the power not increase it.

 

[SUNRAY]

Is this 12 or 24 volt, how have you supplied it, if from one end, i might be concerned about the current at the start of the tape

Indeed, I have seen the results of a fair run of 12V 15W/m stuck to the top of gloss painted picture rail. The heat melted the paint and scorched the wood over a metre or two, ½m of which had significant black marks up the emulsioned wall and ceiling 600-700mm above. The track failed fortunately before any serious damage.

 

[bsr]

Cannabis growing I reckon. I think my whole house has less than 200W of lighting!

@scotcruz I think you will also need to break the run into strips of less than 5m and run individual wires. You should also make sure the strips are not stuck to anything heat sensitive l.

 

[scotcruz]

Cheers folks..

I was only going by the advice the given by the shop and wattage per meter calculation.

The tape is stuck to the Metal Frame which should disperse the heat nicely. I have powered the led 10m one end and 7m on the other.

It was the RGBW controller which complicated matters.. otherwise running individual wires to each 5m lenght would have been easy.