Senergy Green Technologies (SGT Lighting) is a commercial lighting contractor specializing in retrofitting industrial, commercial and warehouse buildings with updated, energy efficient lighting. We can retrofit / recycle HID and fluorescent light fixtures and replace with modern LED lights. Giving you more white light, while saving energy and money. Working with the Wisconsin’s Focus on Energy Small Business Program and other National Utility Big Business Programs, we are able to provide commercial lighting upgrades, national wide, while utilizing these energy saving programs.