An MR11 Lamp is a small 12v spotlights used in 12V garden lighting systems, or sometimes indoor fittings. Due to the low voltage, 12V garden lights are very safe to use and can be installed by any individual who is competent in wiring up lights. A tranformer is used within the system, converting 240V mains to 12V. Each light is connected to the transformer through 2 core cables and junction boxes and the transformer plugs straight into the mains – quick, easy and effective!