3M-LAMP,POLARIZING TASK,CCBK. Low-Glare Compact Fluorescent Polarizing Task Lamp, Weighted Base, 21", Black. Polarizing lens technology reduces reflective glare up to 80% to improve eye comfort. Space-saving design with weighted base. Accepts energy-efficient 27W compact fluorescent bulb MMMTL27W (included). Bulb contains mercury. Base Color: Charcoal Black; Plug Type: 2 Prong; Height: 21 in; Width: N/A.