Got a few boxes of these for my downlights. Great price.
You may also want to consider these downlights with rapid plug installed. You can't screw the polarity up:
http://www.electriciansupplies.com.au/shop/index.php?main_pa…
Video on how it works: https://melec.com.au/product/blind-snake-rapid-plug-base/
Yea it looks like it splices into the cable for you.
So you would need to know what's line and neutral or else if the line is switched and you have it reversed it won't turn of properly. You can't usually tell from the out side what cable is what inside unless its cut.
If Its only dual core you have a 50% chance lol.
Look at the downlight he's linked to. It isn't polarity sensitive. Yes, ideally you want the polarity to be correct but it usually isn't hard to find the tail of the cable and identify the red/brown wire (depending on how old the 3 core is) and observe where the writing on the cable is.
Of course, not everyone is confident with these things so when in doubt, seek the assistance of a professional.
In the video he is installing the power point thing which needs to be done with the correct polarity.
Only the lights are reverse polarity.
The down lights probably have a built in driver that sits inside the light housing itself. So technically it won't matter what you wire up. Plus the housing is probably isolated from mains.
it usually isn't hard to find the tail of the cable and identify the red/brown wire
An end user will not have access to the tail end of an unterminated electrical cable! All cables would have to be terminated. I am thinking about the common people who might look at this product and thought "You beaut! I can install an extra power point in the ceiling myself. How hard can it be to clamp a gadget around a cable? I can do it."
Follow the cable back to a junction box. Remove the cover. Observe the wires. The outer insulation needs to be stripped to make a connection so there are usually some colours showing somewhere.
I can understand that this would be a bridge too far for many but it isn't difficult.
edit: In my case, I have 15 D/Ls that are hardwired old style and need replacing. I'm trying to work out an easy way to do the change over rather than go through the drudgery of undoing 45 screws…
These are good, have used them before
FYI, blind snake plug requires 1.5mm wide cable to work.
$1.65 for a quick connect is very cheap. These are very easy to use once you get the hang of it. They are best suited to new fit off’s but can be used in retro fit situations. ALWAYS ISOLATE the circuit you are working on and really you should be a licensed contractor. A quick small nick in the outer sheath can expose the colour insulation of the core underneath. Some cable is even marked on the outer now, haven’t used any of that yet.
The shop's name is ElectricianSupplies, the video was filmed on a construction site and the electricians mentioned learning to distinguish between live and neutral by feel. It sounds like this isn't a product designed for installation by an end user.