As I am still ordering lights of all types I was wondering if I had shared what I have learned and can't see that I have and it is worth knowing. Not only is my sight blurry and distorted, it is very dim so I am continually searching for stronger and more useable light sources. At the farm I had found wonderful lights with magnifiers and I brought them with me but the new house had only inadequate covered ceiling fixtures which really only provided ambient light.... On doing a little research I found that ideally a room should have four sources of light plus a mirror.
The living room has a high ceiling and light just disappears so the ad for the first light I ordered read "Super bright lighting -150 W equivalent LED Torch lamp lights up a whole room!!!!" When it arrived it didn't do any good in my living room and when I read the fine print it was only 2190 lumens. Knowing the wattage equivalent was really useless information when buying LEDs. You need to know the lumens. So when I replaced the kitchen fixture I found one that was 6600 lumens and it was great.
The other term you need to know is "kelvin." Kelvin is used in lighting to measure the color temperature of a particular light . And in short, the higher the Kelvin rating (expressed in K), the whiter the light will be. The lower the K number the warmer the light. Personally I prefer a warmer light. When the term "daylight" is used it designates a very white light and I find that harsh.