If required for your setup, optional G10q base connector can be purchased here: 
https://www.ebay.com/itm/134127686045 

PRODUCT NAME
Satco S16505 - FC12T9/LED/CIR/865/BP - LED CFL Replacement - 12-inch Diameter - 16 Watt - 120-277 Volt - T9 - 4-Pin (G10q) - Frosted - Non-Dimmable - 6,500 Kelvin (Daylight)

Manufacturer Satco
Part Number S16505
Ordering Code FC12T9/LED/CIR/865/BP
UPC 45923165054
Type LED CFL Replacement
Wattage 16 Watt
Voltage 120-277 Volt
Base Type 4-Pin (G10q)
Shape T9
Temperature 6500K (Daylight)
Light Output 1760 Lumens
Finish Frosted
Beam Angle 135 Degrees
Life Hours 50000
Equivalency 32 Watt Fluorescent
Dimmable Non-Dimmable

DIMENSIONS (in inches)
Outer Diameter 12
Inner Diameter 9.3

Product ID: S16505