1 pair of extra clear attachment arms.
Modular and hyper efficient - mix and match with any lighting system from Hydra, Illumagic and other major brands. Simply use the included clips and attach them to your existing lighting system for added coverage and growth.
If your light is attached with fixed arms, you can add the Vitamini to one side only. If your light is suspended by a hanging kit, you will need two Vitaminis (like "wings"), one on each side to keep the balance.