FML27 27 Watt 82 CRI Full Spectrum 6500K Compact Fluorescent Bulb 4 Pin -- Daylight Natural light (NOT FOR VERILUX BRAND DEVICES) THIS BULB IS NOT INTENDED FOR USE WITH VERILUX BRAND DEVICES. First Quality 27 watt full spectrum replacement bulb fits lamps requiring a standard four pin FML27W bulb (see fitment exceptions below). Full Spectrum, Day light, Natural light bulb. Buy with confidence -- Money Back Warranty With Return Postage Paid 6500K; CRI:82. Compare with America Floor Lamp, Visionmax, etc