I have been using ott lites for years, but now i am redoing my workspace. I acquired 2 old architect lamps ( the flexible spring arm type). My solution to go led is to buy a 90watt equivalent or larger flood bulb. These are dimmable and gave life ratings of 20000-50000 hours. Stay away from the cree or lower end types. Get the daylight version and you are in business for the rest of your life. Plenty of light and if its too bright you can get a plug in dimmer.