Reasons why it's not 5/5 stars.
-The clamp feels a little cheap and flimsy
-The sensor light which is meant to adjust the light automatically based off ambiant light only seemed to work in one direction. When the ambient lightness has gone from dark to light, the brightness of the light bar didn't change.
Overall these are a steal for the price and did the job of lighting up my desk and relieving strain on my eyes. Highly recommend.