Keystone’s Performance Series LED A Lamps are ideal for replacing high powered incandescent bulbs and lower wattage HID lamps, as well as in new construction applications. Our omnidirectional LED lamps produce a 330°/ 340° beam angle of uniform light.
Designed for use in commercial applications, the majority of these LED A Lamps operate off of universal input voltage (120-277V). Select A21 LED lamps use 120V input voltage, and feature phase dimming capability. Lumen output options range from 1,760 lm up to a powerful 4,850 lm.
Performance Series LED A-Lamps provide up to 140 lm/W for exceptional energy savings over incandescent or HID equivalents. For maintenance and replacement cost savings, A21 LED lamps have a 25,000 hour lifetime, and both A25 and A23 lamps have an impressive 50,000 hour lifetime. All Performance Series LED A Lamps are available in an E26 medium base and select models are also available in EX39 mogul base options.
Benefits of Performance Series LED A Lamps:
- Optimal energy savings up to 75% compared to legacy equivalent lamps
- Frosted lens and traditional shape for enhanced aesthetics
- Large metal heatsink for optimal heat dissipation
Features of Performance Series LED A Lamps:
- UL 1993 and 1598C Rated
- Meets Energy Star requirements (medium base models)
- Suitable for use in a base-up or base-down position
- Rated for open and enclosed fixtures
- THD: <20%; power factor: >0.90
- Operating temperature range: -4°F/-20°C to 113°F/35°C max for fully enclosed fixture
- Suitable for dry and damp locations

Tech Specs
- COMMERCIAL A21 LAMP
Catalog Number Color Temp Input Voltage Rated
Lamp WattageLegacy Equivalent
WattageBase Type Lumens CRI Dimmable Efficacy IES File Spec Sheet KT-LED14A21-O-E26-827 2700 120-277V 14W 100W incand. E26 1764 >80 No 126 lm/W Download KT-LED14A21-O-E26-830 3000 120-277V 14W 100W incand. E26 1792 >80 No 128 lm/W Download KT-LED14A21-O-E26-840 4000 120-277V 14W 100W incand. E26 1918 >80 No 137 lm/W Download KT-LED14A21-O-E26-850 5000 120-277V 14W 100W incand. E26 1960 >80 No 140 lm/W Download Download KT-LED20A21-O-E26-827 2700 120-277V 20W 150W incand. E26 2500 >80 No 125 lm/W Download KT-LED20A21-O-E26-830 3000 120-277V 20W 150W incand. E26 2620 >80 No 131 lm/W Download KT-LED20A21-O-E26-840 4000 120-277V 20W 150W incand. E26 2720 >80 No 136 lm/W Download KT-LED20A21-O-E26-850 5000 120-277V 20W 150W incand. E26 2740 >80 No 137 lm/W Download Download KT-LED20A21-O-E26-827-DIM 2700 120V 20W 150W incand. E26 2460 >80 Yes 123 lm/W Download KT-LED20A21-O-E26-830-DIM 3000 120V 20W 150W incand. E26 2500 >80 Yes 125 lm/W Download KT-LED20A21-O-E26-840-DIM 4000 120V 20W 150W incand. E26 2620 >80 Yes 131 lm/W Download KT-LED20A21-O-E26-850-DIM 5000 120V 20W 150W incand. E26 2660 >80 Yes 133 lm/W Download Download - COMMERCIAL A23 LAMP
Catalog Number Color Temp Input Voltage Rated
Lamp WattageLegacy Equivalent
WattageBase Type Lumens CRI Dimmable Efficacy IES File Spec Sheet KT-LED25A23-O-E26-830 3000 120-277V 25W 200W incand./100W HID E26 3160 >80 No 126 lm/W Download KT-LED25A23-O-E26-840 4000 120-277V 25W 200W incand./100W HID E26 3350 >80 No 134 lm/W Download KT-LED25A23-O-E26-850 5000 120-277V 25W 200W incand./100W HID E26 3340 >80 No 133 lm/W Download KT-LED25A23-O-EX39-830 3000 120-277V 25W 200W incand./100W HID EX39 3380 >80 No 135 lm/W Download KT-LED25A23-O-EX39-840 4000 120-277V 25W 200W incand./100W HID EX39 3530 >80 No 141 lm/W Download KT-LED25A23-O-EX39-850 5000 120-277V 25W 200W incand./100W HID EX39 3590 >80 No 143 lm/W Download Download - COMMERCIAL A25 LAMP
Catalog Number Color Temp Input Voltage Rated
Lamp WattageLegacy Equivalent
WattageBase Type Lumens CRI Dimmable Efficacy IES File Spec Sheet KT-LED35A25-O-E26-830 3000 120-277V 35W 300W incand./150W HID E26 4400 >80 No 126 lm/W Download KT-LED35A25-O-E26-840 4000 120-277V 35W 300W incand./150W HID E26 4780 >80 No 137 lm/W Download KT-LED35A25-O-E26-850 5000 120-277V 35W 300W incand./150W HID E26 4850 >80 No 139 lm/W Download KT-LED35A25-O-EX39-830 3000 120-277V 35W 300W incand./150W HID EX39 4550 >80 No 130 lm/W Download KT-LED35A25-O-EX39-840 4000 120-277V 35W 300W incand./150W HID EX39 4780 >80 No 137 lm/W Download KT-LED35A25-O-EX39-850 5000 120-277V 35W 300W incand./150W HID EX39 4850 >80 No 139 lm/W Download Download - G2 COMMERCIAL A21 LAMP
Catalog Number Wattage CCT Lumens Efficacy Input Voltage Base Type Dimmable DLC CRI Spec Sheet KT-LED14A21-O-E26-827-DIM /G2 14W 2700K 1760 126 lm/W 120-277V E26 Y N/A >80 Download KT-LED14A21-O-E26-830-DIM /G2 14W 3000K 1760 126 lm/W 120-277V E26 Y N/A >80 Download KT-LED14A21-O-E26-840-DIM /G2 14W 4000K 1760 126 lm/W 120-277V E26 Y N/A >80 Download KT-LED14A21-O-E26-850-DIM /G2 14W 5000K 1760 126 lm/W 120-277V E26 Y N/A >80 Download KT-LED20A21-O-E26-827-DIM /G2 20W 2700K 2600 130 lm/W 120-277V E26 Y N/A >80 Download KT-LED20A21-O-E26-830-DIM /G2 20W 3000K 2600 130 lm/W 120-277V E26 Y N/A >80 Download KT-LED20A21-O-E26-840-DIM /G2 20W 4000K 2600 130 lm/W 120-277V E26 Y N/A >80 Download KT-LED20A21-O-E26-850-DIM /G2 20W 5000K 2600 130 lm/W 120-277V E26 Y N/A >80 Download - G2 COMMERCIAL A23/PS25 LAMP
Catalog Number Wattage CCT Lumens Efficacy Input Voltage Base Type Dimmable DLC CRI Spec Sheet KT-LED25A23-O-E26-830-DIM /G2 24W 3000K 3200 133 lm/W 120-277V E26 Y N/A >80 Download KT-LED25A23-O-E26-840-DIM /G2 24W 4000K 3200 133 lm/W 120-277V E26 Y N/A >80 Download KT-LED25A23-O-E26-850-DIM /G2 24W 5000K 3200 133 lm/W 120-277V E26 Y N/A >80 Download KT-LED25A23-O-EX39-830-DIM /G2 24W 3000K 3200 133 lm/W 120-277V EX39 Y Y >80 Download KT-LED25A23-O-EX39-840-DIM /G2 24W 4000K 3200 133 lm/W 120-277V EX39 Y Y >80 Download KT-LED25A23-O-EX39-850-DIM /G2 24W 5000K 3200 133 lm/W 120-277V EX39 Y Y >80 Download - G2 COMMERCIAL A25/PS30 LAMP
Catalog Number Wattage CCT Lumens Efficacy Input Voltage Base Type Dimmable DLC CRI Spec Sheet KT-LED35A25-O-E26-830-DIM /G2 35W 3000K 5000 139 lm/W 120-277V E26 Y N/A >80 Download KT-LED35A25-O-E26-840-DIM /G2 35W 4000K 5000 139 lm/W 120-277V E26 Y N/A >80 Download KT-LED35A25-O-E26-850-DIM /G2 35W 5000K 5000 139 lm/W 120-277V E26 Y N/A >80 Download KT-LED35A25-O-EX39-830-DIM /G2 35W 3000K 5000 139 lm/W 120-277V EX39 Y Y >80 Download KT-LED35A25-O-EX39-840-DIM /G2 35W 4000K 5000 139 lm/W 120-277V EX39 Y Y >80 Download KT-LED35A25-O-EX39-850-DIM /G2 35W 5000K 5000 139 lm/W 120-277V EX39 Y Y >80 Download