You should be able to find this on the body of the transformer itself in the form of a va number.
Replacing low voltage halogen with led.
Alide mr16 led bulbs 5w replace 20w 35w halogen equivalent 2700k soft warm white 12v low voltage mr16 gu5 3 bulb spotlights for outdoor landscape flood track lighting not dimmable 450lm 38 deg 6 pack 4 7 out of 5 stars 398.
If your bulb has a twist and lock fitting with two prongs on the bottom it s most likely a 240 volt gu10 bulb and generally has a 50mm fitting.
Led bulb upgrades are.
Mr16 lamps run on low voltage and many times require a power transformer in order to function properly.
Replacing halogen mr16 light bulbs with led light bulbs.
While an led can come reasonably close to a point source like halogen it has low lumen density.
In principle all halogen lamps can therefore be replaced by led s.
High voltage or low voltage.
Early generation led mr16.
These can usually be switched for led bulbs without replacing any parts.
Most mr16 lamps in use today consist of a halogen light bulb.
To overcome this issue manufacturers have historically ganged multiple leds to create a directional lamp that achieves or attempts to achieve similar lumen density as halogen.
Led replacement for halogen.
However there are other mr16 lighting options available including mr16 led lamps which provide countless benefits to users.
There is a large variety of led light sources for all existing sockets.
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.
This instructable details how to easily retrofit a low voltage 12v bi pin halogen fixture with a high power led bulb that will use less power 10w last longer 50 000 hrs and give approximately the same light output 300 lumens.
But you must take care with the voltage used as there are high voltage and low voltage halogen lamps.
If the bulb has 2 sharp pins and pushes into the fitting it is likely a low voltage mr11 or mr16 bulb.