Globe Electric 01201 55-watt  Circline Soft White, CFL 4 Pin Base Replacement Light Bulb, 150-watt Equivalent Circline cfl 4-pin base replacement light bulb Uses only 55 watts of energy with an equivalent output of 150 watts Light output of 3,300 lumens Lifespan of 10,000 hours Used for replacement lighting in energy star certified floor lamps