Transformer 21W: The lamp is powered through the transformer, which converts voltage from a standard 230V wall outlet to the system's 12V. Choose this transformer when the total wattage of the lights in your LED Garden Plug & Play system is up to 21W. For optimal lifespan, the transformer should not be operated at maximum load. It is recommended to leave 10–15% of capacity unused. This transformer is a compact model that plugs directly into a 230V outlet. Specifications: 230–240V/50Hz, 12V AC, 1.67A, 21VA, CE marked, IP44 rated. Note: Due to updated EU directives, LED Garden Plug & Play now features new 12V connectors on the cables (see product images). Adapters are available for integrating new components into older systems.