OttLIte T13330 13-Watt HD OttLite Replacement Bulb, Type A OTTLITE-TrueColor Replacement Bulb The bulb is great for using in a lamp while you are reading crafting or in the office Use this bulb in the TC10050 TC10819 TC10001 and the TC 10179 Compatible with T13330, T1360A, T38J36-CA, Z23112, OLPL13TC, OTL13TCB, T139EZ, T34J3R, OTL13NATB, OTL13P, T137D0, TRS113-CA, TRSJ36, T17113 Superior image and color rendering Low heat, low glare illumination helps reduce eyestrain Energy efficient bulb rated to last up to 10,000 hours Lasts longer than conventional bulbs and saves more energy For use only as a replacement bulb with specific OttLite lamps - bulb type A