Bests & Worsts Reviews from Amazon

I would not purchase this bulb unless I was given direct instructions to do so by an avian vet. Even then, I would ask some tough questions of the vet as to the effectiveness of such a bulb: 1) Do you know that these bulbs were not originally intended for avian use and are, in fact, repackaged reptile bulbs? 2) Are you aware this bulb has a CRI of 88 and a spectral temperature of 7500K? That there are much better full-spectrum bulbs on the market for a fraction of the price? 3) Did you know that the UVB content of this bulb (5%) is over 50X that of natural sunlight? That too much UVB is associated with corneal burns and cataracts in captive parrots? 4) Did you know that the UVA content of this bulb (30%) is over 6X that of natural sunlight? That since birds see UVA, this will likely result in a distortion of your bird's visual experience? 5) Did you know that South American parrots (Amazons, Pionus, Macaw, Conure) have shown zero effect of UV supplementation on serum vitamin D3 and calcium? 6) Do you understand that it is almost impossible to keep a bird at the recommended distance from a stationary UV source, and that if the bird moves 6-9 inches closer to the bulb they will be receiving 4x the intended UV dose? Avian lighting is a complex issue that cannot be addressed through the purchase of an overpriced and poorly-tested reptile bulb. Please do your own research before you make any avian lighting purchase. Patrick Thrush's lighting site and the Mickaboo Reading Room are good places to start.