Light Source ‚¬â€œ 18-watt compact fluorescent lamp that produces light output comparable to a 75-watt incandescent. Arm ‚¬â€œ Standard models feature our contemporary "floating arm" with reaches of 30" and 44". We also carry a special 10" model mounted on a magnet base. Bases ‚¬â€œ Weighted desk base, clamp, and IV-Pivot with optional floor stands and Hangtight System. The 8SM-050 "Adjusta-Shelf-Light" has a magnetic base for mounting to the underside of a shelf or cabinet above the workstation desk surface. Colors ‚¬â€œ Black, White, Almond, & Dove Gray Warranty ‚¬â€œ 5 Year Accessories ‚¬â€œ Hangtight Mounting System for Wall Partitions