Instruct: Classify Amazon reviews into positive or negative sentiment
Query: night only

i bought a much brighter (800 lumens) yellow, flashing light for the front of my bike. This thing is OK for the night, but not OK for the daylight. I nearly was killed when a car door opened in front of me - hurt my shoulder pretty badly - because driver couldn't see me. Now that I have an 800 lumen yellow flashing light, they see me and I've avoided some collisions.