What is does nm mean in reference to lighting? what does it shand 4? I'm 99.999999% sure it has something to do with the spectrum or color band or watever it's called (inform me on the correct term 4 that 2 please). For example, 400 to 520 nm is where you see violet, blue, and green. which promotes vegetative growth.)

Also, i know almost nothing about lumens. if wat i think i know is right, then it measures the intensity of light. n the more, the better???

please help!
so confused.
KnowledgeIsPower Reviewed by KnowledgeIsPower on . Lumens, Etc. What is does nm mean in reference to lighting? what does it shand 4? I'm 99.999999% sure it has something to do with the spectrum or color band or watever it's called (inform me on the correct term 4 that 2 please). For example, 400 to 520 nm is where you see violet, blue, and green. which promotes vegetative growth.) Also, i know almost nothing about lumens. if wat i think i know is right, then it measures the intensity of light. n the more, the better??? please help! so confused. Rating: 5