This review was written on March 30, 2021, for the sixteen Regal Classy Caps that I bought and installed in August 2017.The white plastic housing has never discolored or leaked after nearly four years. They last all night, even making it to the morning during the winter where I live (about the 45th parallel N). The clear plastic over the solar panels clouds up a bit after a couple of years, somewhat like the headlight housing on a car. It is easily cleaned with some 000 steel wool. I also noticed this month that some of the original batteries that came with the units were dying (two lights were not lighting and some did not make it all night). The original batteries are JY 1000mAh rechargeables. I replaced them with Eneloop 2000 mAh rechargeables (probably more mAh than needed).On the negative side, after nearly four years three of the sixteen Classy Caps each developed one bad LED (out of four on each light). One other light stays lighted at all times. I'm replacing it and using its LED's to fix the other three lights (it takes some minor soldering).
Rating: [4 of 5 Stars!]