These charts show the bulb is effective and it will last about 2 years (heavily used 12/12)
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I use a lux meter and covert it on this
website
keep my lux about 39k-45k
it's not exact, but seems to work out between 742 and 856
That's a good idea about dimmable bulbs, but if you design the panel for the room, you should be able to run it 100%, the light penetration is really good, dimmable bulbs cost a lot more and these LEDs don't give off any heat, that's the downside.