double switch for outside lights

A simple neon indicator lamp could be connected in series with the lamps. Something as simple as this item from Maplin

The one shown can be fitted to a standard light switch by drilling a hole above or below the internal switch gear. You would need a deeper back box to allow the indicator to fit inside, but it is easier than buying two separate Double Pole Switches for something as standard as a couple of outside light fittings.

Shop around on the web to find out if you can find smaller versions of the indicator lamp, but make sure you check that they are rated for mains voltages (220 - 240 Vac).

Ideally the indicator would be connected to the switched live side of the switches and a neutral, but it can also be connected across the switch live feeds on a single pole system and it will still glow when either light is switched on.

There are more here

You could drill and fit LED indicators to a standard 2 gang switch. For AC use you fit a diode in parallel with the LED, but reverse polarity. And the usual current limiting series resistor.

best option

parallel tho

You could, but it then would be off when both lights were on. I've seen neons connected switched live to earth before - somehow I doubt its regs compliant these days, if it ever was.

NT

OOPs !!! Series is a serious mistook. :-)

I was thinking of just a glow if one light was left on. Connected across the live feeds to both switches on the 2 gang. If either switch goes on and the indicator finds a path to neutral, it glows and indicates that one light has been left on.

jim coughed up some electrons that declared:

Still going to be a double box - but how about a 4 module gridswitch, two light switch modules and two indicator modules (all available even at B&Q)?

Other than that, I think it will have to be a homebrew effort as suggested by others.

Cheers

Tim

On Tue, 18 Nov 2008 15:23:53 -0800 (PST) someone who may be jim wrote this:-

Use grid components (Crabtree and MK have ranges) to make precisely the switch you want.

the simplest way would be to wire a neon across the switch,it will light when the lights are off and go off if the lights are on

How do most people work out if the lights in the house are on or off?

Can't you just look at the switch?

What if it's two (or more) way switching?

^^^^^^ ????

MBQ

On Tue, 18 Nov 2008 15:23:53 -0800 (PST) someone who may be jim wrote this:-

Yes I know the description and photograph of the last item don't agree. Use your ingenuity to find the right one.

They or MK may do switches with built in neons, which would mean only using a single width box and face plate.

Anyway, the switch being 'on' doesn't demonstrate that the light is on. Lamp failure? Circuit protection 'off'?

Obviously need a CCTV system... :-)

Two or more should be wired so that all up = off IMO

thats ok if you can see both, not much use if ones in the garage and the other is in the house

Two way switching on outside lights???? For what reason?

A workable solution is to have a photocell feeding into a telemetry system signalling via GSM or sat-phone back to a console in the bat cave...or just have the butler go and check the light for you.

So you can switch them on when you come home in the dark fumbling for your keys, and switch them off again once you are indoors.

Seems pretty straightforward to me.

MBQ

just curious that would seem the ideal case for a PIR light