Outdoor Gregg illuminates through a smooth polyethylene shell, asymmetrically molded to look like worn rock. The white lamps come in three sizes—the largest measures 59 centimeters long by 51 centimeters tall and takes a 25-watt fluorescent bulb; the smallest is 31 centimeters long by 27 centimeters high with a 12-watt bulb. Foscarini. +39.041.595.3811. www.foscarini.com.