Lighting Cob spacing ?

[Jibblerjoe]

Got 3 vero29 cobs, hlg 320c 2100b driver. I want a frame to use in 2x4 tent. I need to build a frame. I wanted 4 cobs but typo when ordering. I need help with the spacing of the cobs? Will I need lens for cobs?
I know nothing

 

[BigSm0]

48/5 =9.6. With 3 cobs you would basically have 5 spaces. Area up to the first cob, between the 3 cobs and a space after the last cob so that’s the 5 spaces. If you went with 9.5” space between the cobs you would have even spacing. Lenses are a bad idea especially with high powered cobs in such a small space.

 

[Jibblerjoe]

Thank you sir.