What type of light is this and why is it not working?

Folicky

This light hasn't been working for about a month, so I went out today to eventually change the bulb.....only to find, no bulb! Instead this what I think might be an LED matrix? However I've googled that and it hasn't eally got me anywhere. Anyone know:

a. what this matrix is called

b what could be wrong with this light that is causing it not to work (ie turn on), a connection or does this matrix need replaced.

It is a new build house, we've only lived here for 1 year.

Thanks

molerat

Yes an LED matrix lamp. Not user serviceable so if it is the lamp, you simply need to test if there is power at the connection when switched on, then not a lot you can do about it except replace the whole light fitting.

GDB2222

If in any doubt about how to replace this, buy a replacement and get an electrician to do it for you.
Bear in mind that it looks like the wall has been painted, and I'll bet the wall behind the lamp hasn't been. So, get a replacement the same size or bigger. 

The advice to check for power assumes tools that you probably don't have.  You need one of these, which is a bit expensive for a one-off usage.  https://www.screwfix.com/p/fluke-1ac-ii-voltage-detector-pen/85949

KeithP

GDB2222 said:

The advice to check for power assumes tools that you probably don't have.  You need one of these, which is a bit expensive for a one-off usage.  https://www.screwfix.com/p/fluke-1ac-ii-voltage-detector-pen/85949

As you say, it is a bit expensive for a one-off usage.

At a third of the price, this one would be just as good for a home handyman:

https://www.screwfix.com/p/lap-ms8907-voltage-detector-pen/3222g

FaceHead

I find the tester pens are quite temperamental - they provide a false positive if the wire has recently been turned off. I much prefer the mains tester screwdrivers like this style: https://www.screwfix.com/p/roughneck-electrical-mains-tester-screwdriver-100-250v-ac-slotted-3-0mm-x-80mm/9019x

Yes you have to directly apply it to a live wire as apposed to the voltage detector pens but leaves no ambiguity. 

On the OPs specific problem, test the light and the switch for power and decide whether it's a DIY light replacement or getting and an electrician to fix the wiring. 

Folicky

Thanks everyone......I'll try to get it test but looks like it may be toast!

Myser

Looks like a bulkhead light, so if you have confirmed there is power to the light then you could replace it for another depending on how much illumination you require:

https://www.screwfix.com/p/lap-l3512-led-oval-bulkhead-white-8w/7271p 

https://www.screwfix.com/p/robus-rhv1230-01-led-oval-outdoor-bulkhead-black-white-12w/9151r 

https://www.screwfix.com/p/aurora-utilite-oval-led-bulkhead-white-15w/768jk 

https://www.screwfix.com/p/aurora-utilite-oval-led-bulkhead-white-20w/854jk

Ectophile

There's probably a little switch-mode power supply hiding behind that panel.  They are dirt cheap and often not built to last.

If you're into repairing electronic appliances, it would be possible to fault-find it and maybe source a new power supply.

Otherwise, buy a normal bulkhead lamp that takes a replaceable bulb.

Folicky

I think I should either replace with a normal bulb or go high end. Due to the light not working, I've left my garage door open overnight three times and I've been lucky not to have anything taken (I live on a medium busy country road, not a main road). Itgoes against the grain to pay for one of these but that shitbox that I have is probably going to cost me more than twice what its worth in electrician's fees, so I'm loathe to repeat the same mistake. 

https://www.johnlewis.com/philips-hue-white-ambiance-welcome-led-outdoor-floodlight-black/p5115714

However I don;t need  light that is controlled by a bridge and an app, I need something that turns on reliably. Is there another electrical brand as reliable as Philips but not as expensive?

Myser

So your previous light doesn't appear to have a motion sensor.  Are you now looking for one with a sensor?

Jeepers_Creepers

Folicky, do you have a multimeter? Are you competent enough to use it with live connections present?

If so, good chance you'll find an LED driver on the back of that light fitting with the mains going in and a suitable voltage for the LEDs coming out. Wire up the light to work from a mains supply (with all the obvious care) and test for voltage in (240V AC) and whatever voltage should be coming out the other end (likely DC low - like 12 or 24V).

If it's the driver that's failed, good chance you can replace it; they are designed to fit many such lights. Try eBay, for example.