An R20 light bulb is often used in track and recessed light fixtures. The “R” stands for reflector, which is inside the glass of the light bulb and is used to maximize light directed out of the lamp. The “20” is its diameter in eighths of an inch (20/8in or 2.5in). Choose from our energy-efficient R20 lamps, including CFLs and CCFLs.
itemId=compact-fluorescent-light-bulb-r20-medium-base-4w|~|code=P1R2004|~|priceRange=1|~|orderable=T|~|call-to-order=|~|call-for-price=|~|hasOptions=F|~|isOrganic=F|~|isNew=F|~|optionPriceChange=F|~|bestseller=|~|name=4-Watt Compact Fluorescent (CFL) R20 Flood Medium Screw-In Base|~|brand=TCP|~|rating=0|~|ratingCount=0|~|price=7.3|~|priceReg=7.3|~|priceSale=|~|image=http://ep.yimg.com/ca/I/yhst-57698777434928_2264_12939141|~|finish=|~|wattage=4 Watts|~|voltage=120 Volts|~|lightSource=Fluorescent|~|power=|~|colorTemperature=2700K|Warm White|~|beamSpread=Flood|~|dimmable=No|~|linkable=|~|recessedTrim=|~|recessedHousing=|~|diameter=|~|fixtureArm=|~|fixtureMounting=|~|inputVoltage=|~|dampLocation=|~|batteryBackup=|~|airMovement=|~|integratedNightLight=|~|fluorescentLampType=|~|orderCount=2|~|mapPrice=|~|productBullets=Replaces incandescent
130 Initial lumens
8,000-Hour rated life
Flood
Indoor or outdoor
1-Year warranty
itemId=r20-cold-cathode-fluorescent-light-bulb-5w-frosted|~|code=PMB-509|~|priceRange=1|~|orderable=T|~|call-to-order=|~|call-for-price=|~|hasOptions=T|~|isOrganic=F|~|isNew=F|~|optionPriceChange=T|~|bestseller=|~|name=5-Watt Cold Cathode Fluorescent R20 Flood Medium Lock Out Base Frosted|~|brand=LiteTronics|~|rating=0|~|ratingCount=0|~|price=9.23|~|priceReg=9.23|~|priceSale=|~|image=http://ep.yimg.com/ca/I/yhst-57698777434928_2263_5503425|~|finish=|~|wattage=5 Watts|~|voltage=120 Volts|~|lightSource=Fluorescent|~|power=|~|colorTemperature=2250K|2850K|Warm White|Rosy Warm White|~|beamSpread=Flood|~|dimmable=Yes|~|linkable=|~|recessedTrim=|~|recessedHousing=|~|diameter=|~|fixtureArm=|~|fixtureMounting=|~|inputVoltage=|~|dampLocation=|~|batteryBackup=|~|airMovement=|~|integratedNightLight=|~|fluorescentLampType=|~|orderCount=7|~|mapPrice=|~|productBullets=R20 CCFL
Comparable to 30W incandescent
Dimmable down to 5%
25,000-hour life
Medium LO base
Flood beam spread
Indoors or outdoors
2-Year warranty
itemId=r20-cold-cathode-fluorescent-light-bulb-8w-frosted|~|code=PMB-809DP|~|priceRange=1|~|orderable=T|~|call-to-order=|~|call-for-price=|~|hasOptions=F|~|isOrganic=F|~|isNew=F|~|optionPriceChange=F|~|bestseller=|~|name=8-Watt Cold Cathode Fluorescent R20 Flood Medium Base Frosted|~|brand=LiteTronics|~|rating=0|~|ratingCount=0|~|price=10.99|~|priceReg=10.99|~|priceSale=|~|image=http://ep.yimg.com/ca/I/yhst-57698777434928_2263_5510497|~|finish=|~|wattage=8 Watts|~|voltage=120 Volts|~|lightSource=Fluorescent|~|power=|~|colorTemperature=2850K|Warm White|~|beamSpread=Flood|~|dimmable=Yes|~|linkable=|~|recessedTrim=|~|recessedHousing=|~|diameter=|~|fixtureArm=|~|fixtureMounting=|~|inputVoltage=|~|dampLocation=|~|batteryBackup=|~|airMovement=|~|integratedNightLight=|~|fluorescentLampType=|~|orderCount=2|~|mapPrice=|~|productBullets=R20 CCFL
Comparable to 40W incandescent
Dimmable down to 5%
18,000-hour life
Medium base
2-Year warranty
Weather resistant
itemId=r20-led-light-bulb-8w-dimmable|~|code=PLED8R20-27K-D|~|priceRange=1|~|orderable=T|~|call-to-order=|~|call-for-price=|~|hasOptions=F|~|isOrganic=F|~|isNew=F|~|optionPriceChange=F|~|bestseller=|~|name=8-Watt Dimmable LED R20 Light Bulb|~|brand=Bulbrite|~|rating=0|~|ratingCount=0|~|price=22.9|~|priceReg=22.9|~|priceSale=|~|image=http://ep.yimg.com/ca/I/yhst-57698777434928_2262_4679630|~|finish=|~|wattage=8 Watts|~|voltage=120 Volts|~|lightSource=LED|~|power=|~|colorTemperature=2700K|Warm White|~|beamSpread=|~|dimmable=Yes|~|linkable=|~|recessedTrim=|~|recessedHousing=|~|diameter=|~|fixtureArm=|~|fixtureMounting=|~|inputVoltage=|~|dampLocation=|~|batteryBackup=|~|airMovement=|~|integratedNightLight=|~|fluorescentLampType=|~|orderCount=|~|mapPrice=|~|productBullets=Replaces 50W incandescent
25,000-Hour life
500 Lumens
81 CRI
Dimmable
itemId=compact-fluorescent-light-bulb-r20-medium-base-9w|~|code=P1R2009|~|priceRange=1|~|orderable=T|~|call-to-order=|~|call-for-price=|~|hasOptions=F|~|isOrganic=F|~|isNew=F|~|optionPriceChange=F|~|bestseller=|~|name=9-Watt Compact Fluorescent (CFL) R20 Flood Medium Screw-In Base|~|brand=TCP|~|rating=0|~|ratingCount=0|~|price=7.3|~|priceReg=7.3|~|priceSale=|~|image=http://ep.yimg.com/ca/I/yhst-57698777434928_2264_12947288|~|finish=|~|wattage=9 Watts|~|voltage=120 Volts|~|lightSource=Fluorescent|~|power=|~|colorTemperature=2700K|Warm White|~|beamSpread=Flood|~|dimmable=No|~|linkable=|~|recessedTrim=|~|recessedHousing=|~|diameter=|~|fixtureArm=|~|fixtureMounting=|~|inputVoltage=|~|dampLocation=|~|batteryBackup=|~|airMovement=|~|integratedNightLight=|~|fluorescentLampType=|~|orderCount=1|~|mapPrice=|~|productBullets=Replaces 25W incandescent
300 Initial lumens
Energy Star® qualified
8,000-Hour rated life
Flood
Indoor or outdoor
1-Year warranty
itemId=compact-fluorescent-light-bulbs-r20-medium-base-14w-dimmable|~|code=P4R2014TD|~|priceRange=1|~|orderable=T|~|call-to-order=|~|call-for-price=|~|hasOptions=T|~|isOrganic=F|~|isNew=F|~|optionPriceChange=F|~|bestseller=|~|name=14-Watt Dimmable Compact Fluorescent (CFL) R20 Medium Screw-In Base|~|brand=TCP|~|rating=0|~|ratingCount=0|~|price=10.1|~|priceReg=10.1|~|priceSale=|~|image=http://ep.yimg.com/ca/I/yhst-57698777434928_2264_12959976|~|finish=|~|wattage=14 Watts|~|voltage=120 Volts|~|lightSource=Fluorescent|~|power=|~|colorTemperature=2700K|3000K|3500K|4100K|5000K|6500K|Warm White|Neutral White|Cool White|Soft Daylight|Daylight|~|beamSpread=|~|dimmable=Yes|~|linkable=|~|recessedTrim=|~|recessedHousing=|~|diameter=|~|fixtureArm=|~|fixtureMounting=|~|inputVoltage=|~|dampLocation=|~|batteryBackup=|~|airMovement=|~|integratedNightLight=|~|fluorescentLampType=|~|orderCount=4|~|mapPrice=|~|productBullets=Replaces 50W incandescent
410 Lumens
Good lumen maintenance
Dimmable to 2%
6 Color temperatures
Indoors or outdoors
2-Year warranty
by Annie JoseyWhen choosing reflector lamps you need to know your light bulb's beam width. Does it have a spot beam? A flood beam? How wide will it be from a certain distance away? Use this infographic as a guide to finding the beam spread of any chosen reflector lamp...Read Entire Article
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