21 Best certified electrician - Forum Topics - One of the best opportunities to save money is to convert Metal Halide and High Pressure Sodium High Mast lights over to LED. A typical high mast light consists of a tall pole, 50-150 tall and contains multiple fixtures attached to the pole, typically 4 to 12. Electric services near me for help with old outlets, panel installations, outdoor lighting, generators, pool & spa. The lower poles may be equipped with 400W Metal Halide or High Pressure Sodium bulbs, the taller poles typically are installed with 1000W Metal Halide or High Pressure Sodium bulbs ..More