After a long investigation we selected ADHECOGEN since they offered the best balance of cost, high efficiency and a 5-year warranty. We purchased over 100 LED Troffers and to date they’re working with zero-failure and zero maintenance – very impressive. We were so happy, we gave a second project to them also, 10 LED High Bays. They did a very professional job from quote to delivery. They also applied for our energy-savings rebate in a timely fashion. If you want a great LED solution, ADHECOGEN will be the ideal choice. They are professional, prompt and very reliable. I fully recommend them without any hesitation.