Bulb ED28 ANSI Code M57 Base Mogul Screw (E39) Wattage 175 Initial Lumens (Hor) 11700 Initial Lumens (Vert) 13600 Color Temperature 4000 K Color Rendering Index (CRI) 65 Rated Life (Hor) 6000 hrs Rated Life (Vert) 10000 Product Code 26433 Description MVR175/U/CP UPC 043168264334 Primary Application Street Lighting; Motion-Sensing & Security