These high quality full spectrum incandescent daylight bulbs are the ones that are manufactured in France and are made of the true "blue" blown glass (NOT coated glass).
This blown glass allows for excellent heat transfer, balanced light and enhancement of natural colors. Daylight Blue Bulbs provide UVA simulation, the wavelength that stimulates natural feeding behavior in lizards. The superb European quality allows for a long burn life. Big Apple has found these bulbs to be consistently reliable.
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