Replacing Halogen with LED Bulbs

Hi,

I am looking at replacing the halogen bulbs in my downlights with LED.

They are 12 volt MR16 bulbs with these transformers https://ibb.co/QFSzWx4

It appears that there are compatibility and flickering issues with certain transformer / LED bulb combinations.

Was looking at these https://www.woolworths.com.au/shop/productdetails/572054/phi...

Can anyone offer advice?

Thanks

Comments

  •  

    The downlights you pictured are about 1/2 the brightness of 50w halogen globes. In approx. terms 50w halogen = 750 lumen, and it is difficult to find this brightness in LED's.

  •  

    I googled and found this page https://reductionrevolution.com.au/products/philips-master-l... where one of the quotes/reviews says:

    "I have tried some other LED bulbs from Bunnings, Masters and Kogan and had trouble with flickering etc. The Philips bulbs you supplied me are great: no flicker, bright light better than the halogens they replaced. Thanks."

    The label on your transformer doesn't specify a minimum load. This seems to be what causes flickering - the transformed turns off because there's not enough load.

    I don't think you can be sure you'll be happy until you try one in your fittings. It's only $10

    •  

      jackofspade is right, your transformer has a minimum load of 20 watts. I don't know why I couldn't see that before.

  •  

    I don't have that brand transformer, but +1 for Philips.
    They are the only brand to not reliably not flicker for me. Lights with dimmer switches I have to put to about 3/4 to not have it flicker (non-dimmer bulbs so still "full") but other than that no issues. My ones are about 5W too. Due to price I have two models in my house like obviously different design/emitter layout, but neither flicker compared to other brands.

    Hold out for a special for those 4pks from Bunnings and the like if you can, then just buy up then.

  •  

    Your transformer requires minimum 20W.
    You need to get the retrofit ones like the Philips Master. It has built-in electronics to create the minimum load.

  •  

    i have mix of Philips and Osram MR16 and they work perfectly. Always choose Philips or Osram

  •  

    I caution extremely against the lucce Bella from Bunnings. They are a piece of shit. From flickering to just ouright dying. Replaced all with … Osram from Bunnings and all perfect and zero problem.

  •  

    The transformer will have issues with most LEDs. In Vic, the replacement program used primsal LEDs as these were great for compatibility with existing mr16 halogen downlights.

  •  

    Thanks for all the comments.

    I think I'll just replace the complete downlights & transformers with something like this https://www.bunnings.com.au/deta-7w-ip44-tri-colour-dimmable...

    They are about the same price as the replacement 12v LED bulbs and have a 5 year warranty and no compatibility issues.