Wattage 5, Lumens 230, Base G23, Shape 1TT, Overall Length (mm) 107, Life Hours 10000, Kelvin 4100, CRI 82, 20303, DULUX S 2-PIN ECOLOGIC, Manufacturer: Osram-Sylvania Swift - M29TZ10-HF - PL5/41 Replacement Light Bulb - Equipment to Lamp - 20303 - DULUX S 2-PIN ECOLOGIC - Manufacturer: Osram-Sylvania