Overview Reviews Product Description Pass and Seymour PWP120277 PowerPack Input: 120/277 VAC Output: 24DC Output-20A Ballast. Product Videos Custom Field Amps 24 Input 120/277 Output 24DC Product Reviews Write a Review Write a Review × Pass and Seymour Pass and Seymour PWP120277 PowerPack Input: 120/277 VAC Output: 24DC Output-20A Ballast Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *