Specifications (PAR46):1) Voltage: 6.4V, 12.8V, 28V, 100V, 120V, 230V2) Wattage: 18W, 20W, 30W, 35W, 40W, 75W, 100W, 150W, 250W, 300W, 500W3) Beam spread: spot, flood4) Base: screw, plug, Gx16d5) Colors: clear, red, yellow, blue, greenSpecifications (PAR56):1) Voltage: 6.4V, 12.8V, 28V, 100V, 120V, 230V2) Wattage: 30W, 50W, 100W, 150W, 300W, 500W3) Beam spread: spot, MFL, WFL4) Base: screw, plug, Gx16d5) Colors: clear, red, yellow, blue, greenSpecifications (PAR64):1) Voltage: 28V, 100V, 120V, 230V2) Wattage: 250W, 500W, 800W, 1,000W3) Beam spread: spot, MFL, WFL4) Base: screw, GX16dFeatures:1) Good assortment2) More than 2.5 times than the life time of a normal incandescent lamp3) Constant luminous intensity and constant color location throughout its life time 4) Precise design in reflector and lens