Branded 4 Pin Circular T9 Fluorescent Round Tube 22w 32w 40w or 60w Warm or Cool | eBay
What are the differences between the Osram LED Tubes? | Any-lamp
Product datasheet ST9 EM 12 W/840 200 mm
Plug & Play 12 Inch T9 Circline LED Bulb Ballast Required!
SubstiTUBE® T9 EM | LEDVANCE
SubstiTUBE® T9 EM | LEDVANCE
4058075604612 | Osram SubstiTUBE 1320 lm 12 W LED Tube Light, T9 (212mm) | RS
JESLED T9 LED Circline Light Bulb - 8 Inch 1200LM LED Circular Ceiling Light, 10W 6000K Cool White, Replacement for 22W FC8T9 Ring Fluorescent Lamp Fixture Bulb (Ballast Must be Removed or bypassed)