Gavita TripleStar can be adjusted to 3 different positions: Wide, medium or deep.
You can hang your reflector high above your plants in the deep position for better climate control or close and wide in tight spaces.
In set-ups with more reflectors you can adjust them asymmetrically: Wide in the middle for more overlap and deep at the sides to direct the light down, away from the wall.
The bulb in the kit will work with all kinds of ballasts but it is optimized for use with the "superlumen" 10% boost.
The ballast included is an electronic one with four settings, 250/275/400/440W. This means that you could use 250 or 275w during the vegetative phase and then put it on 400w during bloom phase. To maximize your crop you can even boost it to 440w.
1x Gavita TripleStar reflector
1x Gavita Enhanced HPS 400 W Lampa
1x Lumatek 400W electronic ballast
Everything you need for a complete lamp.