WE are a trusted developer, manufacturer and supplier of high quality energy saving lighting products for more than 12 years. We are focusing on the latest trend of LED lighting and continue to provide the most competitive products for our customers. Is your existing transformer compatible ? The first thing you need to do is determine the existing type of transformer you have in your MR16 circuit, this will most likely be situated up in the roof above the light fittings. There are two kinds of transformer: magnetic transformer and electronic transformers. The first is the older wire wound magnetic. Transformers and the second is the newer electronic transformer. Both work by stepping down the mains voltage (240v) to 12 volts, which allows the bulbs to function. Now the older magnetic transformers will work perfectly with LED MR16s. The issue is that the electronic transformers may not. If a MR16 LED and its transformer is incompatible, symptoms you may experience would be: no light at all, flickering and random shut down of the led lights. Now in some circuits there is one transformer, they need a minimum voltage to pass through them to operate, so please be aware that the electronic transformer will need at least equal or greater of lighting load than the minimum wattage rating of the transformer. For example, if the minimum wattage of your transformer is 20W, so you will need to replace at least 4 X 5W Sanlumia MR16 Spotlight in the circuit. If the minimum wattage is greater than 20W, please keep at least one halogen in the circus. (This is an example, please check your transformer before install) But sometimes every individual light fitting has its own electronic transformer, and the voltage of one LED bulb is too small to satisfy the minimum voltage of the transformer, so we would suggest to change transformers into LED transformers.
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