
These attachments are sold by many different suppliers. Some like this have five squares pointing down. Some have four. All draw 150W so I'm guessing the lumens are the same. Foldable panels can be oriented as needed for those dark corners. I had three 100w incandescent bulbs in my garage. That wasn't enough for my shop. Now I have much more light with slightly increased power consumption. My wife says we now have enough light to do autopsies. They screw into standard E26 lamp holders. If you're thinking of using one of those wands that grabs the bulb to unscrew, they won't fit. You need a ladder.

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