Enhance your bird breeding program by utilizing the very best lighting technology available. Link up to 10 Micro Units.The Arcadia Mini UV-A & UV-B Bird Kit has been specifically designed to allow captive birds to use both UVA and UVB in the way that nature intended. Without vitamin D3 in the correct levels calcium simply cannot be absorbed into the birds system properly. Victamin D3 is produced more effectively when light is emitted at 297nm. A lack of D3 and calcium can have a detriment effect on the birds ability to reproduce.