Transformer is a static electrical equipment used to transform AC voltage and current to transmit AC power. It realizes electric energy transfer based on the principle of electromagnetic induction. Transformers can be divided into power transformers, test transformers, instrument transformers and special-purpose transformers in terms of their uses: power transformers are necessary equipment for power transmission and distribution and power user power distribution; test transformers can withstand voltage (boost) for electrical equipment Test equipment; instrument transformers are used for electrical measurement and relay protection (PT, CT) of the power distribution system; transformers for special purposes include electric furnace transformers for smelting, welding transformers, rectifier transformers for electrolysis, small voltage regulating transformers, etc. We have these models from 240v to 12v transformer for led lights, especially garden lights transformer 120v 150w sells well. If you want to learn more, please contact us!