Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Highy dissatisfied

I ordered this lamp and promptly set it up. It turned on and the light lasted 3 minutes. I called the company which told me it was the ballast. They sent me a new ballast (free) and I installed it - with difficulty. The light came on again for 2 minutes & died again. I sent the lamp back to Amazon and bought a teriffic lamp from Wal-mart! I'm not saying the company is bad - they were helpful in sending the new ballast, but the lamp must have inherent problems with its design.