This is one of those rare times when something I buy exceeds my expectations! These T8 fixtures are extremely light weight and very bright, with a crisp clear light! I installed these for a friend who has a large older kitchen with a furdown add on from the 80's where they used the old T-12 fixtures. They were flickering from bad ballast, bulbs, sockets, you name it; with those old fixtures it's a constant maintenance issue, especially in colder weather when they don't want to come on and damaging to your eyes when they Finally do come on! Replacement of those was a pleasure being a Commercial Journeyman Electrician since 1984 I've seen hundreds of the older light fixtures as well as installed them in many buildings and outside signage where we had to use a special type of ballast & bulb HO's (or high output) which were even heavyer and MORE expensive. These new HO T8 fixtures are a dream come true for an older Electrician like me! Light weight, easy to install (for anyone) pure bright light, use indoors or outdoors in shops, garages, any uninsulated buildings and these light up fast, cold or hot temperatures! I highly recommend, and most definitely will be purchasing more for others and myself. You can't go wrong with this futuristic lighting and priced right for all their worth. I just can't wait to be able to get to my own home! 5* of 5 every time!