Bonlux 180 degree beam angle LED PL Lamps G23 Base LED CFL/Compact Fluorescent Lamp Replacement No Ballast Required, make sure that you re-wire the fixture to bypass the ballast. Using the ballast will cause them to flicker or destroy the LED Bulb. 6W G23 LED PL Lamp LEDs: 28pcs high brightness 2835 SMD chips Dimension: 167*21*31.5mm Power: 6W Input Voltage: AC 85-265V 50-60hz Light Color: Daylight 6000K Lamp Base: G23 2-Pin Base Base depth: 21mm (0.83 inches) Lumen: 550lm (13W CFL replacment) Beam angle: 180 CRI =80Ra