Lenses in led light

Hellos everyone!
I have a doubt about lenses, did I need to use or not?
I have a 4 cob cree CXB3590
And each one have a lenses 120°
Thanks for attention!

You don’t need them.

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I put a paper to see witch one have more bright and the lens have more, but ins’t meaning that will grow senses bud because of that, it’s correct?

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I wouldn’t use them

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The lens is more focused light, but less overall light. Or in other words, the lens isn’t 100% efficient so it costs you some of the light output to get higher intensity directly below the fixture.

I don’t care if you use them or not personally. But you have a higher total flux without the lens.

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Thanks for your attention! I will remove all lenses!

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