Hard To Find Philips Advance or Universal Lighting Ignitors used for 35W-150W High Pressure Sodium Lamps and Philips Advanced Lamp Ignitors for 70W-1000W High Pressure Sodium Lamps as well as 650W and 750W Metal Halide Lamps use a small, electronic component called an igniter or starter to apply a pulse of electrical energy to the lamp, ionizing the gas and reducing its resistance so it can conduct electricity more easily.
