240V Led flickering?

[Mike Blair]

so i went to the wholesalers and they hooked me up with 2x5w leds 240v and a dimmer they said matched. i put them in and they started flickering now and then? first thing i did was check the connections they where fine. then i took the dimmer of and put a normal switch on and every now and then the lights flicker on and off so im pretty sure its the bulbs.. how commen is this?

 

[telectrix]

induced voltage from adjacent live cables. are they 2 way?

 

[Mike Blair]

noo single way. I do have emergency lighting and fluorescent's on the circuit could they do anything to interfere?

 

[telectrix]

yep. what you need is a snubber or 3. connect across the S/L and N of the LEDs. experiment on the best position/s to fit them. a bit of trial and error.

 

[Mike Blair]

Is this commen to use them snubber things? First time hearing of them o.o

 

[7029 dave]

Could be, picking up capacitance from the flories, and discharging through the led's, snubbers/ resistor across the circuit.

 

[Mike Blair]

Interesting il give this ago tomorrow thanks for the help guys

 

[LankyWill]

would a fan lets say 100/t domestic fan, cause the same flickering effect?

 

[Mike Blair]

very strange kind of a pain in the..... il let you know if a snubber works still not got it been bit busy lately haha

 

[Mike Blair]

i disconnected the florescent i also put the normal switch on and put a normal 50w halogen "dodgy" bulb and still slightly flickerd?? it cant be the connections checked multi times there solid... there's still emergency lighting but would they effect it??

 

[Mike Blair]

anyone else got any info / tips if not i think il be sacrafising these down lights to the gods of fire... haha

 

[Marvo]

Are the lamps flickering when they're on or flickering when the switch is in the off position?

 

[uksparks]

These snubbers... If it's between s/l and N, presumably you could cut the cable feeding the light and just use a few who's and put it in a little enclosure? Or presumably you could put one end of it in the light switch and connect the other end I to the N at the switch if it's there?

 

[Mike Blair]

just flicker slightly randomly its not the bulbs because it tested a 50w halogen on them and it also did the same and have checked the voltage " 240-245volts " and checked the connections a number of times just dont know what to do. disconnected the florescent and they still flicked the emergency lights are still connected could it be them

 

[Marvo]

just flicker slightly randomly .....

are they flickering when they're switched on, ie the light isn't constant brightness?

 

[Richard Burns]

Have you tried wiring in another light fitting temporarily and seeing if there is a problem with the fitting itself, maybe the lamp is not making good contact, the lamp holder leads are corroded or loose, etc..
If you are getting lamp flickering with both LED and incandescent and there are no loose wiring connections or rapidly switching other loads on the circuit then you have to come down to a loose connection somewhere, as you have checked all your connections it must be the fitting (you have changed everything else!)

 

[Mike Blair]

yeahh for example the 2 x 5 watt leds will flicker completely off and on or very slightly now and then the halogens just dont always keep constant brightness but do not flicker completely off and on

 

[Mike Blair]

it flickers in both lamps not just the one fitting

 

[Richard Burns]

Chuck them out and the dimmer get your money back from the wholesaler and start again.

 

[Mike Blair]

they flicker when they are off. soon as the switch is off they are off lol