Hello, sifus, Happy Chinese New Year!

I bought some downlights + 4 surface downlight from the same store.

Asked the electrician to install all of them. And we haven't start to moving it, so the light are off most of the time.

The 4 surface downlight are installed on following location.

1 x Car pouch
2 x balcony
1 x store room

Soon after the installation, we realized the left sided balcony surface downlight unable to light up. Since I haven't bought the ladder, I just asked the electrician to check on it, and the electrician claim that he tried to test it after install but it function normally, just that he heard a "pop" sound after that, but since everything is okay, light up normally, he just left it. Since the light come with warranty. I just send back to the shop and the driver was changed, then electrician installed it back and so far no more issue.

1 month before, notice right sided balcony light got 1/5 part of less didn't light up. Since I bought ladder, I just take it down myself and keep it first for exchange later. (The shop switched a new one for me)

2 weeks before, when I on the car pouch light, in just within 5 minutes+ the light burned, electricity tripped. So removed it and exchanged. (The shop exchanged a new driver for me)

Today, the right sided balcony light got pop sound, then didn't light up but it didn't trip the electricity (Last time I install it I did install the L & N wire correctly and it can light up).


So I would like to know

1. Is it just coincident that I am bad luck and all this issue happened? Due to the inferior quality of the surface downlight? (the right sided balcony light broken 2 times) And I don't even stay there yet, can't imagine what will happen if I stay there and switch it on always...

2. Or is it due to the bad works of the electrician? If so, is there I anything I can do to check it? (Would hope that it is not due to this problem since all wiring are concealed and painted nicely already....)

3. If it is really due to back electrician work. Will it cause damage to my other electrical appliances in the future? (like fridge, TV those?) Or they will be safer since the plug usually come with fuse?

Hope sifus here could give me some advice regarding this.

There are some downlights which arent good, especially those china ones which are too cheap. Those with the separate drivers, and some with built in drivers, that one all useless one. I did change for a house a few years ago, within 6 months the light KO. I send to warranty, they come with 1 year warranty, the following 6months KO again. The owner frustrated, ask me change all to good one. I went to another shop and ask, no issues for 2years+ already. warranty also 2years. I'd suggest for you to ask them for a better brand, I use Opple light. Or can get Phillips, easier.

1. It could be faulty lights, have those points been running perfectly with other lights for years before this?
If your lights don't even come with SIRIM sticker.. be it china made or local made.. there you get your answer. Cheap lights from china, without sirim = quality really F grade.

2. That is depending on what is the scope - install lights to existing points, or pull new light circuit.

3. Of course he's the last person seen with the lights so its easy to blame the electrician. But even best doctor in the world cannot enliven a soul-less corpse.

Need more backstory.
This is new house or old house?
Wiring from developer or some faux electrician (plaster ceiling and cabinetry are not electricians) who installed?
Has the lights ever been proven to work well (if hooked up to any other lamp or fluorescent tube)?
Are the switches snapping on and off correctly? Half contact can also cause issues.

This post has been edited by ceo684: Feb 1 2022, 11:10 PM

I see, can't really remember the name dy, guess it is Thor light. But when bought it didn't ask for quality one so I guess should be those no brand one. If it is light problem then it sound better for me, I don't mind spending extra time getting it exchanged since I am not staying there yet. Just worry it is due to wiring problem.

1. New house, but second hand, the owner never use it. The point is added by electrician. And yes, I didn't notice any sirim logo, so could be low quality light...

2. Then I just can hope I don't need to pull new one. since already painted the wall, hacking would be a hassle... not hacking then feel like ruined the whole house effort to conceal it

House is new, the ex-owner is subcon from developer. Never stay before and sold to me. Just a 1-2 years house.
But the affected point is all pulled by the electrician (that's why he is suspected and also because those extra socket plug he made for me, some are tilted to an extent that you can notice with naked eye, obviously he is not using those lever so deducted some impression on him)
Those electric point never fitted with other light before this.
I feel the switches are okay. So quite unlikely is due to that.

Whilst we assume the lights are the cause - Lighting point wiring is pretty overspec in most cases, hardly go wrong if using quality lights. It would eliminate one root cause.

You can swap out the lights one by one (use the points to power up an old bulb) and see if it works well. Then you can narrow down the issue.

Thank you very much for your suggestion. Hope it is just due to quality problem.