Ideal for office and drafting environments, this extremely versatile and reliable task light features all metal construction and a heavy-duty desktop mounting clamp that fits up to 2.5" thick surfaces. The 38" reach extension arm offers a wide range of positioning options. The 18" x 4.5" heavy-duty rectangular metal shade is fully adjustable using the convenient thumb knob. Takes two 15W fluorescent bulbs (both included). 3-prong grounded power cord. UL listed.