Instruct: Classify the given Amazon review as either positive or negative.
Query: Quality and Design issues

I have used 4 of the 6 that I ordered. The light is clean and bright, and not harsh. And it was the cost-savings and environmental benefits that compelled my purchase. However, one of the four bulbs was defective--it burnt out on the 3rd day, after less that 5 hours of use. And the dimensions of these lights are much longer than conventional bulbs, so they stick out from our kitchen's recessed lighting fixtures as well as the sconce that illuminates the driveway. I would recommend finding alternatives closer in length to conventional bulbs.