11 Watts 6500 degrees Kelvin bright Daylight 4.75 inch outside diameter 4 pin brass connector, pins face outside This is an 11 watt circular fluorescent that replaces the General brand 114865. The lamp is a T4 (1/2 inch) diameter tube with a four pin connector with the pins facing outside the lamp. The outside diameter of the lamp is 4.75 inches. It fits these and other models:
FCLT4/11W
FCL/T4 11W CE ROHS
Harbor Freight
Office Depot E313201 Task Lamp
PL-C11W AC120V
ROHS
ZD122 Magnifying Desk Lamp
ZD122/L