A G16.5 bulb has a diameter of 2.1 inches. We currently carry a wide selection of globe  bulbs from industry-leading manufacturers including Sunlite, Satco, GE, and Philips, with the bulbs themselves ranging in color choices including yellow, blue, green, and red. Achieve cost-effective energy efficiency without sacrificing aesthetic appeal - order your globe bulb from BulbAmerica with fast same-day shipping!