U - Bend FB31T8, 1 5/8", Natural Light 5000K (# FB31T850)

NEW - U -Bend, 1 5/8" spacing (FB31T8), T8, 31 watt, Natural Day Light 5000K, 84 CRI - Color Rendering Index, 2750 Lumens, 30,000 hours.  Replacement lamp for Sunbox FB031/850,  Total number of bulbs for following fixtures - SunRay (4 bulbs), SunRay II (4 bulbs), SunRay II+ (4 bulbs), SunSquare and SunSquare+ models (6 Bulbs).  *  Recommend replacing every 2 years to maintain correct light output. *  TCLP Compliant!