Do G4 Led Bulbs Need A Transformer

What wattage do i need.

Do g4 led bulbs need a transformer. The customer used to use halogen but has moved over to led. For example if you wanted to power 4 x 4w spotlights you would need a 20w transformer. A lot of transformers for e g. Most people tend to focus on wattage when it comes to measuring the brightness they need.

When replacing with led bulbs they found they had to keep at least one halogen in the circuit to keep the load high. They had stopped working due to a faulty 12v transformer i ve just replaced the transformer with a constant voltage driver 1 25w but with any more than 3. The purpose of the transformer is to reduce the mains voltage 240v to the desired level relative to the bulb being powered e g. However it s slightly different for led bulbs.

12v halogen lamps state a minimum load e g. Firstly the true brightness of led bulbs is measured in lumens. As mentioned before most of the g4 leds operate on dc voltage so they will need a different power supply or transformer to operate. Boxlood led driver transformer 240v 12v with bi pi base mr16 socket dc 12v 0 6a max 7w non dimmable for 12v led lights gu5 3 mr16 led bulbs g4 led mr11 led 3 pack 4 3 out of 5 stars 33 14 99 14.

Hi guys quick question regarding 5x mr16 gu5 3 led bulbs in downlighters. You probably need to replace the power supply with one designed for leds. Some led bulbs work with 230 volt mains ac alternating current electricity for example the gu10 led bulbs. All led bulbs require a driver a special type of transformer to work properly.

Mains voltage leds such as gu10 and b22 bulbs have the driver built in to the bulb. For instance a 2 4w g4 led. All mains powered led bulbs require a transformer. According to various web sites some leds have compatibility issues with transformers designed for halogens in particular the power supply may have a minimum load and your all led setup uses too few watts.

Three 35w spots with three 10w leds they will not work or not work well. Others like the mr16 led bulbs run on 12 volt dc direct current. Best in this case is to replace the transformer with one suited for lower minimum loads sometimes called led light transformer.