1.75 x 1.5 x 8", 250w hps only no mh, 1 contender from a random unknown seed from a bag, 3gal oval mop bucket w/o drain, no vent, no humidifier, no nothing, just light and bucket :-D kinda crispy and wilting leaves, edges turning down, bottom levels yellowing and a funky gnats edges id say? btw...