To determine how many and what wattage bulbs you should install check the transformer rating.
Can i replace mr16 halogen with led.
If you have low voltage halogen light bulbs installed with a transformer the first thing you need to do before replacing halogen mr16 light bulbs with led light bulbs is to find the transformer s maximum load.
The answer is maybe.
They should operate from your existing transformers.
How to replace a mr16 halogen bulb with led to change your mr16 bulb you must first identify the wattage of the bulb and the rating of the transformer that you are currently using.
You should be able to find this on the body of the transformer itself in the form of a va number.
The issue is that mr16 halogens can come in one of 3 voltages 12 24 and 120 volts.
It should tell you the maximum and minimum wattage permitted.
You need to check to determine what your system uses.
Then you must check to make sure your led bulbs use the same voltage.
If you re replacing low voltage mr16 50w halogens that have low voltage transformers the first option and potentially easiest way to convert to led is replace it with something like a philips 8w mr16 led.
It is now another year later a good time to revisit the status of led mr16 lamps.
That report showed that led mr16 lamps intended to replace 20w and 35w halogen mr16s performed reasonably well but led replacements for the popular 50w category of halogen under performed compared to halogen.