good quality; good packaging; good price LED track light can instead of the traditional halgon track light ,much energy saving ,long life span and bright also. Input Voltage: AC 100-240V; Constant Current: DC 350mA / DC 700mA Light out-put: Max 100lum, 6*3WBeam Angle: 15\30\45degrees; Dimension: L175.5*D92mm Material: Aluminium alloyAverage rated life: 50, 000hours