Lenses - extra 60°/90°/120° lenses which can be easily changed just requiring a small Phillips head screwdriver for 25W, 48W & 96W the lager lights require 4 nuts per 48W panel to be removed as well.

This ability to tune your growing environment by simply changing the lenses gives you unparalleled flexibility in being able to fine tune lamp placement with respect to plant requirements allowing you to cover just about all possible growing situations.