Best Light for a mother plant ? cheapest to run All year ... LED? ,T5s ?

I’m just curious on the most efficient light to keep a mother or possibly 2 mothers going .. to keep em nice green and vegged .. monthly costs ? I’ll most likely be using my old 3x3 .. also . Is it better to keep mothers on 18/6? or run em 24 ? I’m new to this page . But I know there’s lots of knowledge on here . so I figured I’d ask .

Probably a t5 or a hlg veg led

oill said:

Probably a t5 or a hlg veg led

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thanks man . I was thinking led , I’m thinking the Hlg 65 seems perfect for it .