Specially designed lamp house and transformer for operating different types of spectral lamps that ensures almost immediate striking of the spectral lamps no sooner they are switched ON and provides a steady light output of high Intensity. Transformer encased in a two part aluminium extrusion with insulated plastics side supports for safety having overall dimension of about 230×165×115mm (L×W×H). Plastic side supports have holes for proper inside ventilation. Provision for mounting a support rod, about 50cm in length, from the top of the transformer casing for holding lamp house makes the apparatus a convenient self-contained assembly. Rod projects more than 40cm above the casing and provides convenient vertical adjustment in the lamp house position.