Keystone’s Essential Series A Shape Bulbs are designed for general purpose lighting needs. They’re suitable for new construction applications or replacing incandescent and halogen bulbs. Offering substantially longer lifespans and higher efficiencies, our A Shape Bulbs minimize energy and replacement costs.
Keystone’s extensive line of Essential Series omnidirectional LED bulbs provide solutions for a variety of application needs. There is a wide range of wattage and lumen outputs available, as well as both 80 and 90 CRI options for a majority of the line. Color temperature choices include 2700K, 3000K, and 5000K, offering more aesthetic flexibility over incandescent bulbs.
Ideal for use in table, desk, or floor lamps, the 3 way switch LED bulb features 3 lumen output options in a single bulb.
Benefits of Essential Series A Shape Bulbs
- Smooth diffused lens for comfortable glare free performance
- Durable plastic housing lowers the risk of breakage
- HiCRI LED’s offer enhanced color rendering, providing ideal clarity, representation, and uniformity
- Optimal energy savings up to 80% compared to legacy equivalents
- Lower heat generation compared to legacy equivalents
- Smooth, uniform dimming (dimming models)
- Long lifespan minimizes replacement and maintenance costs
Features of Essential Series A Shape Bulbs
- UL listed, ANSI compliant, and FCC Part 15 compliant
- Meets Energy Star requirements
- CEC Title 20 compliant (90 CRI bulbs only)
- Title 24 JA8 compliant (2700K & 3000K bulbs only)
- Suitable for use in enclosed fixtures
- Operating temperature range: -4°F/-20°C to 95°F/35°C
- Input voltage: 120V
Application Types
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- General Lighting
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- Pendant Lights
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- Wall Sconce
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- Surface Mount Ceiling Fixtures
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- Table/Floor Lamps
Tech Specs
- 80 CRI A19 NON-DIMMING CONTRACTOR
SERIES LED BULBSCatalog Number Color Temp Input
VoltageRated
Lamp WattageLegacy Equivalent
WattageBase Type Lumens CRI Dimmable Efficacy Spec Sheet JA8 T24 CEC T20 KT-LED9A19-O-827-ND-CS 2700 120V 9W 60W Incandescent E26 800 >80 No 88.9 lm/W Download No No KT-LED9A19-O-830-ND-CS 3000 120V 9W 60W Incandescent E26 800 >80 No 88.9 lm/W Download No No KT-LED9A19-O-835-ND-CS 3500 120V 9W 60W Incandescent E26 800 >80 No 88.9 lm/W Download No No KT-LED9A19-O-840-ND-CS 4000 120V 9W 60W Incandescent E26 800 >80 No 88.9 lm/W Download No No KT-LED9A19-O-850-ND-CS 5000 120V 9W 60W Incandescent E26 800 >80 No 88.9 lm/W Download No No KT-LED14A19-O-827-ND-CS 2700 120V 14W 100W Incandescent E26 1500 >80 No 114.3 lm/W Download No No KT-LED14A19-O-830-ND-CS 3000 120V 14W 100W Incandescent E26 1500 >80 No 114.3 lm/W Download No No KT-LED14A19-O-835-ND-CS 3500 120V 14W 100W Incandescent E26 1500 >80 No 114.3 lm/W Download No No KT-LED14A19-O-840-ND-CS 4000 120V 14W 100W Incandescent E26 1500 >80 No 114.3 lm/W Download No No KT-LED14A19-O-850-ND-CS 5000 120V 14W 100W Incandescent E26 1500 >80 No 114.3 lm/W Download No No - 80 CRI A19 & A21 DIMMABLE
LED BULBSCatalog Number Color Temp Input Voltage Rated
Lamp WattageLegacy
Equivalent
WattageBase Type Lumens CRI Dimmable Efficacy Spec Sheet JA8 T24 CEC T20 KT-LED6A19-O-827 2700 120V 6W 40W Incandescent E26 450 >80 Yes 75 lm/W Download No No KT-LED6A19-O-830 3000 120V 6W 40W Incandescent E26 450 >80 Yes 75 lm/W Download No No KT-LED6A19-O-850 5000 120V 6W 40W Incandescent E26 450 >80 Yes 75 lm/W Download No No KT-LED6A19-O-827 /G2 2700 120V 6W 40W Incandescent E26 460 >80 Yes 76.7 lm/W Download No No KT-LED6A19-O-830 /G2 3000 120V 6W 40W Incandescent E26 460 >80 Yes 76.7 lm/W Download No No KT-LED6A19-O-850 /G2 5000 120V 6W 40W Incandescent E26 460 >80 Yes 76.7 lm/W Download No No KT-LED9.5A19-O-827 2700 120V 9.5W 60W Incandescent E26 800 >80 Yes 84 lm/W Download No No KT-LED9.5A19-O-830 3000 120V 9.5W 60W Incandescent E26 800 >80 Yes 84 lm/W Download No No KT-LED9.5A19-O-835 3500 120V 9.5W 60W Incandescent E26 800 >80 Yes 84 lm/W Download No No KT-LED9.5A19-O-840 4000 120V 9.5W 60W Incandescent E26 800 >80 Yes 84 lm/W Download No No KT-LED9.5A19-O-850 5000 120V 9.5W 60W Incandescent E26 800 >80 Yes 84 lm/W Download No No KT-LED9.5A19-O-827 /G2 2700 120V 9.5W 60W Incandescent E26 800 >80 Yes 84.2 lm/W Download No No KT-LED9.5A19-O-830 /G2 3000 120V 9.5W 60W Incandescent E26 800 >80 Yes 84.2 lm/W Download No No KT-LED9.5A19-O-835 /G2 3500 120V 9.5W 60W Incandescent E26 800 >80 Yes 84.2 lm/W Download No No KT-LED9.5A19-O-840 /G2 4000 120V 9.5W 60W Incandescent E26 800 >80 Yes 84.2 lm/W Download No No KT-LED9.5A19-O-850 /G2 5000 120V 9.5W 60W Incandescent E26 800 >80 Yes 84.2 lm/W Download No No KT-LED9.5A19-O-827-GU24 2700 120V 9.5W 60W Incandescent GU24 800 >80 Yes 84 lm/W Download No No KT-LED9.5A19-O-830-GU24 3000 120V 9.5W 60W Incandescent GU24 800 >80 Yes 84 lm/W Download No No KT-LED9.5A19-O-840-GU24 4000 120V 9.5W 60W Incandescent GU24 800 >80 Yes 84 lm/W Download No No KT-LED9.5A19-O-850-GU24 5000 120V 9.5W 60W Incandescent GU24 800 >80 Yes 84 lm/W Download No No KT-LED11A19-O-827 2700 120V 11W 75W Incandescent E26 1100 >80 Yes 100 lm/W Download No No KT-LED11A19-O-830 3000 120V 11W 75W Incandescent E26 1100 >80 Yes 100 lm/W Download No No KT-LED11A19-O-840 4000 120V 11W 75W Incandescent E26 1100 >80 Yes 100 lm/W Download No No KT-LED11A19-O-850 5000 120V 11W 75W Incandescent E26 1100 >80 Yes 100 lm/W Download No No KT-LED13A19-O-827 2700 120V 13W 100W Incandescent E26 1600 >80 Yes 123.1 lm/W Download No No KT-LED13A19-O-830 3000 120V 13W 100W Incandescent E26 1600 >80 Yes 123.1 lm/W Download No No KT-LED13A19-O-835 3500 120V 13W 100W Incandescent E26 1600 >80 Yes 123.1 lm/W Download No No KT-LED13A19-O-840 4000 120V 13W 100W Incandescent E26 1600 >80 Yes 123.1 lm/W Download No No KT-LED13A19-O-850 5000 120V 13W 100W Incandescent E26 1600 >80 Yes 123.1 lm/W Download No No KT-LED16A21-O-827 2700 120V 16W 100W Incandescent E26 1600 >80 Yes 100 lm/W Download No No KT-LED16A21-O-830 3000 120V 16W 100W Incandescent E26 1600 >80 Yes 100 lm/W Download No No KT-LED16A21-O-840 4000 120V 16W 100W Incandescent E26 1600 >80 Yes 100 lm/W Download No No KT-LED16A21-O-850 5000 120V 16W 100W Incandescent E26 1600 >80 Yes 100 lm/W Download No No - 80 CRI A19 & A21
NON-DIMMING LED BULBSCatalog Number Color Temp Input Voltage Rated
Lamp WattageLegacy
Equivalent
WattageBase Type Lumens CRI Dimmable Efficacy Spec Sheet JA8 T24 CEC T20 KT-LED6A19-O-827-ND 2700 120V 6W 40W Incandescent E26 480 >80 No 80 lm/W Download No No KT-LED6A19-O-830-ND 3000 120V 6W 40W Incandescent E26 480 >80 No 80 lm/W Download No No KT-LED6A19-O-850-ND 5000 120V 6W 40W Incandescent E26 480 >80 No 80 lm/W Download No No KT-LED9A19-O-827-ND /G2 2700 120V 9W 60W Incandescent E26 800 >80 No 89 lm/W Download No No KT-LED9A19-O-830-ND /G2 3000 120V 9W 60W Incandescent E26 800 >80 No 89 lm/W Download No No KT-LED9A19-O-835-ND /G2 3500 120V 9W 60W Incandescent E26 800 >80 No 89 lm/W Download No No KT-LED9A19-O-840-ND /G2 4000 120V 9W 60W Incandescent E26 800 >80 No 89 lm/W Download No No KT-LED9A19-O-850-ND /G2 5000 120V 9W 60W Incandescent E26 800 >80 No 89 lm/W Download No No KT-LED9A19-O-827-UV 2700 120V-277V 8.5W 60W Halogen E26 800 >80 No 94 lm/W Download No No KT-LED9A19-O-830-UV 3000 120V-277V 8.5W 60W Halogen E26 800 >80 No 94 lm/W Download No No KT-LED9A19-O-835-UV 3500 120V-277V 8.5W 60W Halogen E26 840 >80 No 99 lm/W Download No No KT-LED9A19-O-840-UV 4000 120V-277V 8.5W 60W Halogen E26 840 >80 No 99 lm/W Download No No KT-LED9A19-O-850-UV 5000 120V-277V 8.5W 60W Halogen E26 840 >80 No 99 lm/W Download No No - 90 CRI A19 & A21 DIMMABLE
LED BULBS (CEC COMPLIANT)Catalog Number Color Temp Input Voltage Rated
Lamp WattageLegacy
Equivalent
WattageBase Type Lumens CRI Dimmable Efficacy Spec Sheet JA8 T24 CEC T20 KT-LED6A19-O-927 2700 120V 6W 40W Incandescent E26 450 >90 Yes 75 lm/W Download Yes Yes KT-LED6A19-O-930 3000 120V 6W 40W Incandescent E26 450 >90 Yes 75 lm/W Download Yes Yes KT-LED6A19-O-950 5000 120V 6W 40W Incandescent E26 450 >90 Yes 75 lm/W Download Yes Yes KT-LED9A19-O-927 2700 120V 9W 60W Incandescent E26 800 >90 Yes 89 lm/W Download Yes Yes KT-LED9A19-O-930 3000 120V 9W 60W Incandescent E26 800 >90 Yes 89 lm/W Download Yes Yes KT-LED9A19-O-940 4000 120V 9W 60W Incandescent E26 800 >90 Yes 89 lm/W Download Yes Yes KT-LED9A19-O-950 5000 120V 9W 60W Incandescent E26 800 >90 Yes 89 lm/W Download Yes Yes KT-LED12A19-O-927 2700 120V 12W 75W Incandescent E26 1100 >90 Yes 92 lm/W Download Yes Yes KT-LED12A19-O-930 3000 120V 12W 75W Incandescent E26 1100 >90 Yes 92 lm/W Download Yes Yes KT-LED12A19-O-950 5000 120V 12W 75W Incandescent E26 1100 >90 Yes 92 lm/W Download Yes Yes KT-LED16A21-O-927 2700 120V 16W 100W Incandescent E26 1600 >90 Yes 100 lm/W Download Yes Yes KT-LED16A21-O-930 3000 120V 16W 100W Incandescent E26 1600 >90 Yes 100 lm/W Download Yes Yes KT-LED16A21-O-940 4000 120V 16W 100W Incandescent E26 1600 >90 Yes 100 lm/W Download Yes Yes KT-LED16A21-O-950 5000 120V 16W 100W Incandescent E26 1600 >90 Yes 100 lm/W Download Yes Yes - 3 WAY SWITCH LED BULBS
>80No82 lm/WDownload–>
Catalog Number Color Temp Input
VoltageRated
Lamp WattageLegacy Equivalent
WattageBase Type Lumens CRI Dimmable Efficacy Spec Sheet JA8 T24 CEC T20 KT-LED16A21-O-827-3W 2700 120V 5.5W 40W Incandescent E26 450 lm >80 No 82 lm/W Download No No 8W 60W Incandescent 800 lm 100 lm/W No No 16W 100W Incandescent 1600 lm 100 lm/W No No KT-LED16A21-O-830-3W 3000 120V 5.5W 40W Incandescent E26 450 lm >80 No 82 lm/W Download No No 8W 60W Incandescent 800 lm 100 lm/W No No 16W 100W Incandescent 1600 lm 100 lm/W No No KT-LED16A21-O-850-3W 5000 120V 5.5W 40W Incandescent E26 450 lm >80 No 82 lm/W Download No No 8W 60W Incandescent 800 lm 100 lm/W No No 16W 100W Incandescent 1600 lm 100 lm/W No No
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