These MR16, base type GU5.3 (pins) LED Spotlight, suitable for variety of settings including, Commercial, Retail and Domestic, simple to install and direct replacement for  existing MR16 Halogen bulbs. For a consistent light output, there is a chip onboard (COB) and the Aluminium casing conducting heat away from electronics for longer life, and the colour, yellow-white (warm) 5w consumption produce 50w Halogen bulb. Please note that these bulbs are not dimmable.