Elco Lighting's Low Voltage Retrofit Kits are a versatile and affordable solution to energy cost savings. Our Low Voltage Retrofit Kits permit conversion of existing fixtures to use low voltage MR16 lamps. The transformer is shipped with the trim assembly and attaches electrically to the medium base socket within the housing. Elco Lighting's Low Voltage Retrofit Kits are available in 6", 5" and in sloped configurations as well.