A value pack of 10 MR16 spotlight light bulbs with a light output equivalent to a 75W halogen dichroic but a power consumption of only 50W, these powerful little spot Lightbulbs Directly replace existing MR16 light bulbs to save 30% of your electricity costs. A simple plug-in replacement for standard MR16 halogen light bulbs, these energy savers use patented infrared recovery technology to give up to 50% greater light output and reduced heat.This spotlight lamp is fitted with a low voltage 12V GU5.3 2-pin (5.33mm apart) base.