A gesture lighting source output command method for controlling a lighting apparatus, together with an asymmetrical, no facing, gesture decoding device for commanding a lighting source, by decoding gesture translational motions of a heat emitting object, e.g. a human hand, at distances up to 1.5 meters, in geometrical planes that may be not coplanar with the gesture decoding device plane, and comprising a casing with an embedded electronic controller and two dual PIR sensors, geometrically arranged in a special manner, rotated 2α degrees one relatively to the other, fitted with specially designed Fresnel lenses, their beam axis forming an angle of 2γ degrees between each other and an angle β with the vertical.