its 4 star rating is given based upon using this product minimum number of days ie based on 4 days of product usedright now performance is good and used for led and set of boxfollowing are reviews from my side1 delivery delivery as per expected date2 packing very good 3 10 seconds are taken while functioning every time4 2 ports available space between both ports needs to reviewsand ports material is not gud ie losing connections due to unavailable of quantity mate