Goodlite G-20253 F32T8/830/ECO Straight 32 Watt 48-Inch Inch 800 Series T8 Fluorescent Tube Light Bulb Warm White 3000k G13 Medium Bipin, 48" long, Good Efficiency 75% less energy than incandescent, 3500 Lumens More than 100++ lumens/watt (efficacy) Bulb Meets Federal Minimum efficiency Standards Brand Cross Reference F32T8/830/ECO - F32T8/SPx30/ECO - F32T8/TL830/ALTO - FO32/830/ECO - F32T8/XL/SPX30/ECO - F32T8/TL830 PLUS/ALTO - FO32/830/XP/ECO CRI 85 800 series high quality triphosphor coding Energy efficient, an environmentally responsible lamp low mercury meets TCLP requirements Works with INSTANT / RAPID Start Fixtures, Long Life: 25,000 hour ,Bulbs sleeved safe wile shipping