Our 3 pack of spike lights are manufactured from die-cast aluminium and finished in a matt-black. They contain a GU10 base which means that they can be connected directly to mains without the need of a transformer. Having a GU10 base means that the spike lights are compatible with most LED bulbs and they can be fully dimmed. When you add to the shopping basket we provide the option to add an optional bulb. These garden spike lights are IP65, this means that they can be safely installed outdoors where rain/water will drop and these lights do a fantastic job of illuminating your garden.