Switch help

[OxiaUK]

Hi

I need to find a switch exactly like this one in below but that will work with 2x 6w LED bulbs.... anyone know of one?

Greenbrook T41D-C


Thanks

 

[JohnD]

to save every member carrying out their own search, you might like to include a pic, and a description of the features you require, and the reason why the one you mention is unsuitable.

 

[OxiaUK]

it operates at dusk to dawn and allows the lights to remain on for up to 8hrs before going off. the one above says not suitable for LED loads

 

[JohnD]

the one above says not suitable for LED loads

I bet it is.

I've used various timed and photocell switches that say unsuitable for LED and CFL lamps and they work fine.

there is a chance that it picks up a slight PD across the L and SL, but you can get that if you put any low-wattage filament bulb into the circuit.

CFLs sometimes used to flicker, but you can stop that the same way.

 

[OxiaUK]

I bet it is.

I've used various timed and photocell switches that say unsuitable for LED and CFL lamps and they work fine.

there is a chance that it picks up a slight PD across the L and SL, but you can get that if you put any low-wattage filament bulb into the circuit.

CFLs sometimes used to flicker, but you can stop that the same way.

Thanks for your reply. I have tried it and the led lamps glow when off. there is no way for me to mix the bulbs and have it look ok. is there another way?

 

[JohnD]

change one of the bulbs for a filament (incandescent) bulb. What happens?

 

[OxiaUK]

change one of the bulbs for a filament (incandescent) bulb. What happens?

the glow stops

 

[JohnD]

what sort of lamps are you using? hall and landing? porch? outdoor?

 

[boringoldcodger]

Sometimes people on here recommend this sort of thing:
https://uk.farnell.com/ampohm-wound...250vac-radial/dp/1438452?MER=sy-me-pd-mi-alte

to prevent the glow, but I've no personal experience of these.

 

[bernardgreen]

there is a chance that it picks up a slight PD across the L and SL, but you can get that if you put any low-wattage filament bulb into the circuit.

The main ( and often ignored ) problem is that the "smart" switch contains electronics that control the state ( ON or OFF ) of the the actual switch.

These electronics require power at all times ( unless they are battery operated )

If there is Live and Neutral (*) available at the switch and the "smart" switch has a Neutral terminal then the switch can use Live and Neutral for it's power source,

(*) a blue or black wire may be Switched Live and NOT a Neutral.

Where there is no Neutral available at the "smart" switch the switch allows a small current to flow through the lamp when the lamp is OFF. This small current is used to power the electronics in the switch. This current is enough to make the lamp glow slightly, With incandescent lamps this glow is too dim to be noticeable, with LED lamps the glow is often noticeable.

Sometimes people on here recommend this sort of thing:
https://uk.farnell.com/ampohm-wound...250vac-radial/dp/1438452?MER=sy-me-pd-mi-alte

These devices pass a small current that bypasses the lamp and this is the current that powers the electronics in the "smart" switch. The amount of current that can bypass is determined by the value of the capacitor

 

[ericmark]

There are many load capacitors which will stop glow or flashing, Danlers and Elkay seem to be the two most popular makes,

they leak away the power used to power the switch, but it is only making it so you can't see the leakage, for an outside lamp it would not matter, just let it glow.

 

[OxiaUK]

Thanks for all your replies.. I'll give this a go!