Operating voltage:110-130V/50/60Hz or 220-240V/50/60Hz Fluorescent tube diameter:12mm Color temperature:2700-6900K Color rendering index:>80 Power factor (PF):<0.60 or >0.98 Total harmonic distortion (THDI):>125% or <25% Lifetime:6000-8000 Hours Measured according to IEC9698 & 969 standards Base available:E26/E27/B22 Energy used (watts):18W/22W/24W/26W/30W