Please note discountvoucher codes are not applicable on this product everything you need in one pack this bulb and fitting combo will gear you up with everything you need to make the switch to energy saving leds the fitting is of a standard size and the bulb uses just 5 watts of energy its an ideal pack for home movers first time installs and new builds incredibly low energy consumption compared to standard halogen bulbs the spotlight in this pack uses 90 less energy over its expect