Changing downlight globes

Here (main three links) possibly, but spares are not listed anywhere, and their main business appears to be Gazebos! My first thought was return it under warranty as LED units are supposed to have a life of 7 to 10 years.

https://www.google.com/search?q=Allen+%2B+Roth+20268-000+parts
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not a bulb problem, the computer board is what makes the light dim. for the price of replacing the main board i would just let it work the way it is. if the light fails completely, then think about a new board, but its not really a thing that is needed.

Connect to live and neutral, cap other wires and see what happens.
If you have 2 live wires, you might have 3-way switch

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

The LED light bulbs operate at 3 to 5 V usually. The noise your hearing is a result of the voltage reduction within the internal workings of the lamp base. The lamps should be installed with an
LED driver vs a transformer power supply.

This is usually on most packaging:

LED MR16 lamps operate in the same fittings as regular 12V lamps. However, they work best when they are mated with an led driver in place of the transformer.
Example of an LED driver:
http://www.google.com/products/catalog?hl=en&safe=off&rls=com.microsoft:en-ph&q=LED+Driver&um=1&ie=UTF-8&tbm=shop&cid=16162019396751156854&sa=X&ei=HzQpTqOWOK_NmAX0-LWqDA&ved=0CEcQ8wIwAg#

The noise will not go away unless you use an LED driver with the MR16 lamps.

Thanks for choosing FixYa.
Kelly

it was a mistake to install them in first place, now, if your transformer blows, that meant that it is overloaded!

primary solutionto the problem, without adding cost of re-wiring will be change globes (50w) to these of lower wattage, say 40w or even less and this will protect transformers from blowing up.

another solution will be to what is load on the transformer, it must be at least 20% greater than combined light supported. if it is not, then duiring power fluctuation it can, and will be burn out.

say, you have 30 lights and 3 switches, this meant that you have three circuits of say 10 lights. 10lights x 50w = 500wat!!! that is rather large and costly transformer, to avoid this prohibitive cost, solve problem otherways, buy 120watt or 150watt transformer and wire two globes to each. this will provide margin as well as enough supply to support your light.

please bear in mind that you are legally not allowed to touch anything what is connected to mains except changing the globe! you need to speak with elelctrician and come to solution in cooperation with eleloctrician.

if you find this advice useful, please do not hesitate to leave comment and vote for me, thanx!

your new transformer should be fine unless your downlight lamp is 20w,most are 50w 12v so you should check this first.
As for connection your mains supply (primary) connects red to either of the 2 live terminals and black to any of the neutral.The 2 wires from your lamp then go into any pair of the secondary terminals.polarity doesn't matter that is why they are not marked.The transformer can supply 105 w so 2 50w lamps may be connected.
HTH

You have 12 volt globes that are 50 watts power. Check out a home improvement store/lighting store for a replacement.