Blues Buster introduces a revolution in light bulb design, Blues Busters full spectrum lighting is achieved by using a specially formulated glass, This glass removes the yellow and brownish spectrum colors from the light, The effect is a light so natural that even if it is grey outside it feels like sunshine inside, (Note: This Product Description Is Informational Only, Always Check The Actual Product Label In Your Possession For The Most Accurate Ingredient Information Before Use, For Any Health Or Dietary Related Matter Always Consult Your Doctor Before Use, )UPC: 646304002168 U SKU: SPDSP20124