I ordered these 23w, 2500 lumen, 5000k bulbs to test in my photo lighting. I compare them to Alzo 45W CFLs https://www.amazon.com/gp/product/B00198U6U6/ref=ppx_yo_dt_b_asin_title_o02__o00_s00?ie=UTF8&psc=1 At 2500 lumens and 5000K I expected them to be a bit dimmer than 2800 lumens, Alzo 5500K lamps but was very surprised at how small the difference was. I would post pictures showing the difference but they are so close to the same thing until uploaded here it's really hard to tell. While every little bit of brightness helps in some of the scenarios I use them in, the difference is small enough that the lower power consumption and consequent cooler temperatures took precedence and convinced me to use these bulbs over Alzo bulbs. I've only had them for a few days so can't comment on durability but so far I'm happy with them!
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