Fluorescent Magnifier Swing Arm Lamp UL Listed Manufacturers one-year warranty 4" diameter three-diopter magnifying lens enlarges 75%. Flexible 45" reach spring-balanced arm. Clamps on up to 2-3/4" thick surfaces. Convenient double outlet in base. Three-prong ground cord. Includes 22W Circline fluorescent bulb. Replacement bulb GEL33774 (sold separately). CSA Listed. Shpg. wt. 8 lbs. White W3700wht