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Keystone Lighting

Keystone KTAT 480V to 277V, Step Down Auto Transformer, Max Wattage 375W

Keystone
$0.00 - $0.00
$79.80
$79.80 - $79.80
$79.80
In stock

Keystone’s 480V to 277V Step-Down Auto-Transformers are designed to step down 480V to 277V single-phase power. These transformers enable consumers ...

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$0.00 - $0.00
$79.80
$79.80 - $79.80
$79.80
Keystone KTAT 480V Step Down Auto Transformer, Single Flex Conduit , 250W
Keystone KTAT 480V Step Down Auto Transformer, Single Flex Conduit , 250W

Keystone KTAT 480V to 277V Step Down Auto Transformer, Single Flex Conduit , Max Wattage 250W

Keystone
$0.00 - $0.00
$117.18
$117.18 - $117.18
$117.18
In stock

Features Input Voltage: 480V Output Voltage: 277V Max Power: 250W Number of Output: 1 Single Flex Conduit No Load Power Consumption: < 7W...

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$0.00 - $0.00
$117.18
$117.18 - $117.18
$117.18
Keystone KTAT 480V Step Down Auto Transformer, Single Flex Conduit , 375W
Keystone KTAT 480V Step Down Auto Transformer, Single Flex Conduit , 375W

Keystone KTAT 480V to 277V Step Down Auto Transformer, Single Flex Conduit , Max Wattage 375W

Keystone
$0.00 - $0.00
$142.66
$142.66 - $142.66
$142.66
In stock

Features Input Voltage: 480Vac ±10% / 347Vac ±10% Output Voltage: 277V Max Power: 375W Number of Output: 1 Single Flex Conduit No Load Power...

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$0.00 - $0.00
$142.66
$142.66 - $142.66
$142.66
Keystone KT-LED14.5T8EM-48GC-8CSJ-D 4-ft LED T8 Emergency Backup Tube, CCT Selectable
Keystone KT-LED14.5T8EM-48GC-8CSJ-D 4-ft LED T8 Emergency Backup Tube, CCT Selectable Sold out

Keystone KT-LED14.5T8EM-48GC-8CSJ-D 4-ft 15W LED T8 Emergency Backup Tube, G13 Base, 5CCT Selectable, 120-277V

Keystone
$0.00 - $0.00
$89.50
$89.50 - $89.50
$89.50
Out of stock

Features Wattage: 14.5W Voltage: 120-277V Base: G13  (Medium Bi-Pin) Shape: T8 Color Temperature: 3000K/3500K/4000K/5000K/6500K Lumens: 1900/200...

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$0.00 - $0.00
$89.50
$89.50 - $89.50
$89.50
Sold out
Keystone KTLD-100-UV-PS1800 100W Power Select Constant Current LED Driver
Keystone KTLD-100-UV-PS1800 100W Power Select Constant Current LED Driver

Keystone KTLD-100-UV-PS1800 100W Power Select Constant Current LED Driver

Keystone
$0.00 - $0.00
$35.95
$35.95 - $35.95
$35.95
In stock

Features Max. Output Power: 100W Nominal Wattage: 97W Output Current: 1500mA, 1600mA, 1700mA, 1800mA Input Voltage: 120-277V Output Voltage: 30-5...

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$0.00 - $0.00
$35.95
$35.95 - $35.95
$35.95
Keystone KTLD-100-UV-PS2300 100W Power Select Constant Current LED Driver
Keystone KTLD-100-UV-PS2300 100W Power Select Constant Current LED Driver

Keystone KTLD-100-UV-PS2300 100W Power Select Constant Current LED Driver

Keystone
$0.00 - $0.00
$63.73
$63.73 - $63.73
$63.73
In stock

Features Max. Output Power: 100W Nominal Wattage: 97W Output Current: 2000mA, 2100mA, 2200mA, 2300mA Input Voltage: 120-277V Output Voltage: 20-4...

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$0.00 - $0.00
$63.73
$63.73 - $63.73
$63.73
Keystone KTLD-15-UV-PS300 15W Power Select Constant Current LED Driver
Keystone KTLD-15-UV-PS300 15W Power Select Constant Current LED Driver

Keystone KTLD-15-UV-PS300 15W Power Select Constant Current LED Driver

Keystone
$0.00 - $0.00
$37.48
$37.48 - $37.48
$37.48
In stock

Features Total Power: 15W Output Current: 200mA, 230mA, 270mA, 300mA Input Voltage: 120-277V Output Voltage: 30-54V Dimming: 0-10V Remote Mountin...

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$0.00 - $0.00
$37.48
$37.48 - $37.48
$37.48
Keystone KTLD-15-UV-PS350 15W Power Select Constant Current LED Driver
Keystone KTLD-15-UV-PS350 15W Power Select Constant Current LED Driver

Keystone KTLD-15-UV-PS350 15W Power Select Constant Current LED Driver

Keystone
$0.00 - $0.00
$37.48
$37.48 - $37.48
$37.48
In stock

Features Total Power: 15W Output Current: 260mA, 290mA, 320mA, 350mA Input Voltage: 120-277V Output Voltage: 20-42V Dimming: 0-10V Remote Mountin...

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$0.00 - $0.00
$37.48
$37.48 - $37.48
$37.48
Keystone KTLD-25-UV-PS450 25W Power Select Constant Current LED Driver
Keystone KTLD-25-UV-PS450 25W Power Select Constant Current LED Driver

Keystone KTLD-25-UV-PS450 25W Power Select Constant Current LED Driver

Keystone
$0.00 - $0.00
$44.15
$44.15 - $44.15
$44.15
In stock

Features Total Power: 25W Output Current: 300mA, 350mA, 400mA, 450mA Input Voltage: 120-277V Output Voltage: 30-54V Dimming: 0-10V Remote Mountin...

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$0.00 - $0.00
$44.15
$44.15 - $44.15
$44.15
Keystone KTLD-25-UV-PS600 25W Power Select Constant Current LED Driver
Keystone KTLD-25-UV-PS600 25W Power Select Constant Current LED Driver

Keystone KTLD-25-UV-PS600 25W Power Select Constant Current LED Driver

Keystone
$0.00 - $0.00
$44.15
$44.15 - $44.15
$44.15
In stock

Features Total Power: 25W Output Current: 450mA, 500mA, 550mA, 600mA Input Voltage: 120-277V Output Voltage: 20-42V Dimming: 0-10V Remote Mountin...

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$0.00 - $0.00
$44.15
$44.15 - $44.15
$44.15
Keystone KTLD-35-UV-PS650 35W Power Select Constant Current LED Driver
Keystone KTLD-35-UV-PS650 35W Power Select Constant Current LED Driver

Keystone KTLD-35-UV-PS650 35W Power Select Constant Current LED Driver

Keystone
$0.00 - $0.00
$46.11
$46.11 - $46.11
$46.11
In stock

Features Total Power: 35W Output Current: 500mA, 550mA, 600mA, 650mA Input Voltage: 120-277V Output Voltage: 30-54V Dimming: 0-10V Remote Mountin...

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$0.00 - $0.00
$46.11
$46.11 - $46.11
$46.11
Keystone KTLD-35-UV-PS850 35W Power Select Constant Current LED Driver
Keystone KTLD-35-UV-PS850 35W Power Select Constant Current LED Driver

Keystone KTLD-35-UV-PS850 35W Power Select Constant Current LED Driver

Keystone
$0.00 - $0.00
$46.11
$46.11 - $46.11
$46.11
In stock

Features Total Power: 35W Output Current: 700mA, 750mA, 800mA, 850mA Input Voltage: 120-277V Output Voltage: 20-42V Dimming: 0-10V Remote Mountin...

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$0.00 - $0.00
$46.11
$46.11 - $46.11
$46.11
Keystone KTLD-45-UV-PS1100 45W Power Select Constant Current LED Driver
Keystone KTLD-45-UV-PS1100 45W Power Select Constant Current LED Driver

Keystone KTLD-45-UV-PS1100 45W Power Select Constant Current LED Driver

Keystone
$0.00 - $0.00
$48.00
$48.00 - $48.00
$48.00
In stock

Features Total Power: 45W Output Current: 900mA, 950mA, 1000mA, 1100mA Input Voltage: 120-277V Output Voltage: 20-42V Dimming: 0-10V Remote Mount...

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$0.00 - $0.00
$48.00
$48.00 - $48.00
$48.00
Keystone KTLD-45-UV-PS850 45W Power Select Constant Current LED Driver
Keystone KTLD-45-UV-PS850 45W Power Select Constant Current LED Driver

Keystone KTLD-45-UV-PS850 45W Power Select Constant Current LED Driver

Keystone
$0.00 - $0.00
$48.00
$48.00 - $48.00
$48.00
In stock

Features Total Power: 45W Output Current: 700mA, 750mA, 800mA, 850mA Input Voltage: 120-277V Output Voltage: 30-54V Dimming: 0-10V Remote Mountin...

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$0.00 - $0.00
$48.00
$48.00 - $48.00
$48.00
Keystone KTLD-75-UV-PS1400 75W Power Select Constant Current LED Driver
Keystone KTLD-75-UV-PS1400 75W Power Select Constant Current LED Driver

Keystone KTLD-75-UV-PS1400 75W Power Select Constant Current LED Driver

Keystone
$0.00 - $0.00
$56.41
$56.41 - $56.41
$56.41
In stock

Features Total Power: 75W Output Current: 1100mA, 1200mA, 1300mA, 1400mA Input Voltage: 120-277V Output Voltage: 30-54V Dimming: 0-10V Remote Mou...

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$0.00 - $0.00
$56.41
$56.41 - $56.41
$56.41
Keystone KTLD-75-UV-PS1700 75W Power Select Constant Current LED Driver
Keystone KTLD-75-UV-PS1700 75W Power Select Constant Current LED Driver

Keystone KTLD-75-UV-PS1700 75W Power Select Constant Current LED Driver

Keystone
$0.00 - $0.00
$56.41
$56.41 - $56.41
$56.41
In stock

Features Total Power: 75W Output Current: 1400mA, 1500mA, 1600mA, 1700mA Input Voltage: 120-277V Output Voltage: 20-42V Dimming: 0-10V Remote Mou...

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$0.00 - $0.00
$56.41
$56.41 - $56.41
$56.41
Keystone KTLD-100-UV-12V 96W Constant Voltage LED Driver
Keystone KTLD-100-UV-12V 96W Constant Voltage LED Driver

Keystone KTLD-100-UV-12V 96W Constant Voltage LED Driver

Keystone
$0.00 - $0.00
$111.58
$111.58 - $111.58
$111.58
In stock

Features Max. Output Power: 96W Output Current: 8.0A Max Input Voltage: 120-277V Output Voltage: 12V Remote Mounting Distance: 4-ft Number of O...

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$0.00 - $0.00
$111.58
$111.58 - $111.58
$111.58
Keystone KTLD-100-UV-24V 96W Constant Voltage LED Driver
Keystone KTLD-100-UV-24V 96W Constant Voltage LED Driver

Keystone KTLD-100-UV-24V 96W Constant Voltage LED Driver

Keystone
$0.00 - $0.00
$108.39
$108.39 - $108.39
$108.39
In stock

Features Max. Output Power: 96W Output Current: 4.0A Max Input Voltage: 120-277V Output Voltage: 24V Remote Mounting Distance: 38-ft Number of ...

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$0.00 - $0.00
$108.39
$108.39 - $108.39
$108.39
Keystone KTLD-120-UV-12V 120W Constant Voltage LED Driver
Keystone KTLD-120-UV-12V 120W Constant Voltage LED Driver

Keystone KTLD-120-UV-12V 120W Constant Voltage LED Driver

Keystone
$0.00 - $0.00
$127.53
$127.53 - $127.53
$127.53
In stock

Features Max. Output Power: 120W (2 x 60W Channels) Output Current: 5.0A Max Input Voltage: 120-277V Output Voltage: 12V Remote Mounting Distance...

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$0.00 - $0.00
$127.53
$127.53 - $127.53
$127.53
Keystone KTLD-100-UV-24V 100W Constant Voltage LED Driver
Keystone KTLD-100-UV-24V 100W Constant Voltage LED Driver

Keystone KTLD-100-UV-24V 100W Constant Voltage LED Driver

Keystone
$0.00 - $0.00
$133.33
$133.33 - $133.33
$133.33
In stock

Features Max. Output Power: 96W Output Current: 4.0A Max Input Voltage: 120/277V Output Voltage: 24V Dimming: Fixed Output Class 2 Output Micro...

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$0.00 - $0.00
$133.33
$133.33 - $133.33
$133.33
Keystone KTLD-60-UV-12V 60W Constant Voltage LED Driver
Keystone KTLD-60-UV-12V 60W Constant Voltage LED Driver

Keystone KTLD-60-UV-12V 60W Constant Voltage LED Driver

Keystone
$0.00 - $0.00
$74.97
$74.97 - $74.97
$74.97
In stock

Features Max. Output Power: 60W Output Current: 5.0A Max Input Voltage: 120-277V Output Voltage: 12V Dimming: Fixed Output Class 2 Output Micro...

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$0.00 - $0.00
$74.97
$74.97 - $74.97
$74.97
Keystone KTLD-60-UV-12V-67 60W Constant Voltage LED Driver
Keystone KTLD-60-UV-12V-67 60W Constant Voltage LED Driver

Keystone KTLD-60-UV-12V-67 60W Constant Voltage LED Driver

Keystone
$0.00 - $0.00
$79.68
$79.68 - $79.68
$79.68
In stock

Features Max. Output Power: 60W Output Current: 5.0A Max Input Voltage: 120-277V Output Voltage: 12V Dimming: Fixed Output Class 2 Output Wire ...

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$0.00 - $0.00
$79.68
$79.68 - $79.68
$79.68
Keystone KTLD-60-UV-12V 60W Constant Voltage LED Driver
Keystone KTLD-60-UV-12V 60W Constant Voltage LED Driver

Keystone KTLD-60-UV-12V-DP 60W Constant Voltage LED Driver

Keystone
$0.00 - $0.00
$55.25
$55.25 - $55.25
$55.25
In stock

Features Max. Output Power: 60W Dual Channel Output Current: 5.0A Max Input Voltage: 120-277V Output Voltage: 12V Remote Mounting Distance: 19-ft...

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$0.00 - $0.00
$55.25
$55.25 - $55.25
$55.25
Keystone KTLD-60-UV-24V 60W Constant Voltage LED Driver
Keystone KTLD-60-UV-24V 60W Constant Voltage LED Driver

Keystone KTLD-60-UV-24V 60W Constant Voltage LED Driver

Keystone
$0.00 - $0.00
$49.37
$49.37 - $49.37
$49.37
In stock

Features Max. Output Power: 60W Output Current: 2.5A Max Input Voltage: 120-277V Output Voltage: 24V Dimming: Fixed Output Class 2 Output Wire T...

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$0.00 - $0.00
$49.37
$49.37 - $49.37
$49.37
Keystone KTLD-60-UVN-12V 60W Constant Voltage LED Driver
Keystone KTLD-60-UVN-12V 60W Constant Voltage LED Driver

Keystone KTLD-60-UVN-12V 60W Constant Voltage LED Driver

Keystone
$0.00 - $0.00
$33.42
$33.42 - $33.42
$33.42
In stock

Features Max. Output Power: 60W Output Current: 5.0A Max Input Voltage: 120-277V Output Voltage: 12V Dimming: Fixed Output Class 2 Output Wire T...

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$0.00 - $0.00
$33.42
$33.42 - $33.42
$33.42
Keystone KTLD-24-UV-12V 24W Constant Voltage LED Driver
Keystone KTLD-24-UV-12V 24W Constant Voltage LED Driver

Keystone KTLD-24-UV-12V 24W Constant Voltage LED Driver

Keystone
$0.00 - $0.00
$50.88
$50.88 - $50.88
$50.88
In stock

Features Max. Output Power: 24W Output Current: 2.0A Max Input Voltage: 120-277V Output Voltage: 12V Remote Mounting Distance: 19-ft Number of O...

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$0.00 - $0.00
$50.88
$50.88 - $50.88
$50.88
Keystone KTLD-24-UV-24V 24W Constant Voltage LED Driver
Keystone KTLD-24-UV-24V 24W Constant Voltage LED Driver

Keystone KTLD-24-UV-24V 24W Constant Voltage LED Driver

Keystone
$0.00 - $0.00
$50.88
$50.88 - $50.88
$50.88
In stock

Features Max. Output Power: 24W Output Current: 1.0A Max Input Voltage: 120-277V Output Voltage: 24V Remote Mounting Distance: 38-ft Number of O...

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$0.00 - $0.00
$50.88
$50.88 - $50.88
$50.88
Keystone KTET 20W Low Voltage Electronic Transfomer
Keystone KTET 20W Low Voltage Electronic Transfomer

Keystone KTET 20W Low Voltage Electronic Transfomer

Keystone
$0.00 - $0.00
$28.28
$28.28 - $28.28
$28.28
In stock

Features Wattage: 20W Input Voltage: 277Vac ±10% Input Frequency: 277V Output Voltage: 12Vac Class 2 Output Dimensions Length: 2.26" Width: 1.2...

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$0.00 - $0.00
$28.28
$28.28 - $28.28
$28.28
Keystone KTET 20W Compact Low Voltage LED Driver
Keystone KTET 20W Compact Low Voltage LED Driver

Keystone KTET 20W Compact Low Voltage LED Driver

Keystone
$0.00 - $0.00
$35.38
$35.38 - $35.38
$35.38
In stock

Features Wattage: 20W Input Voltage: 120Vac ±10% Input Frequency: 60Hz Output Voltage: 12Vac Class 2 Output Phase Control Dimmable Dimensions L...

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$0.00 - $0.00
$35.38
$35.38 - $35.38
$35.38
Keystone KTET 60W Step Down Halogen Electronic Transformer

Keystone KTET 60W Step Down Halogen Electronic Transformer

Keystone
$0.00 - $0.00
$44.95
$44.95 - $44.95
$44.95
In stock

Features Max. Load: 60W Input Voltage: 120Vac ±10% Input Frequency: 50/60Hz Input Current: 0.45 Output Voltage: 11V Lamp Connection: Parallel Wit...

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$0.00 - $0.00
$44.95
$44.95 - $44.95
$44.95
Keystone KTET 60W Low Voltage Step Down Halogen Electronic Transformer

Keystone KTET 60W Low Voltage Step Down Halogen Electronic Transformer

Keystone
$0.00 - $0.00
$32.41
$32.41 - $32.41
$32.41
In stock

Features Max. Load: 60W Input Voltage: 120Vac ±10% Input Frequency: 50/60Hz Input Current: 0.51 Output Voltage: 11.8V Class 2 output Dimmable Lamp...

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$0.00 - $0.00
$32.41
$32.41 - $32.41
$32.41
Keystone KTET 75W Low Voltage Step Down Halogen Electronic Transformer

Keystone KTET 75W Low Voltage Step Down Halogen Electronic Transformer

Keystone
$0.00 - $0.00
$48.79
$48.79 - $48.79
$48.79
In stock

Features Max. Load: 75W Input Voltage: 120Vac ±10% Input Frequency: 60Hz/50Hz Input Current: 0.64 Output Voltage: 11V Non-Dimmable Lamp Connectio...

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$0.00 - $0.00
$48.79
$48.79 - $48.79
$48.79
Keystone KTET 75W Step Down Halogen Electronic Transformer, 120V

Keystone KTET 75W Step Down Halogen Electronic Transformer, 120V

Keystone
$0.00 - $0.00
$27.84
$27.84 - $27.84
$27.84
In stock

Features Max. Load: 75W Input Voltage: 120Vac ±10% Input Frequency: 50/60Hz Input Current: 0.62 Output Voltage: 11V Dimmable (20-75W loading) Lam...

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$0.00 - $0.00
$27.84
$27.84 - $27.84
$27.84
Keystone KTET 75W Low Voltage Step Down Halogen Electronic Transformer, 120V

Keystone KTET 75W Low Voltage Step Down Halogen Electronic Transformer, 120V

Keystone
$0.00 - $0.00
$27.41
$27.41 - $27.41
$27.41
In stock

Features Max. Load: 75W Input Voltage: 120Vac ±10% Input Frequency: 50Hz/60Hz Input Current: 0.7 Output Voltage: 12V Dimmable Lamp Connection: Pa...

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$0.00 - $0.00
$27.41
$27.41 - $27.41
$27.41
Keystone KTET 75W Step Down Halogen Electronic Transformer, 277V

Keystone KTET 75W Step Down Halogen Electronic Transformer, 277V

Keystone
$0.00 - $0.00
$32.19
$32.19 - $32.19
$32.19
In stock

Features Max. Load: 75W Input Voltage: 277Vac ±10% Input Frequency: 50/60Hz Input Current: 0.26 Output Voltage: 11V Lamp Connection: Parallel Wi...

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$0.00 - $0.00
$32.19
$32.19 - $32.19
$32.19
Keystone KTET 150W Low Voltage Step Down Halogen Electronic Transformer

Keystone KTET 150W Low Voltage Step Down Halogen Electronic Transformer

Keystone
$0.00 - $0.00
$36.69
$36.69 - $36.69
$36.69
In stock

Features Max. Load: 150W Input Voltage: 120Vac ±10% Input Frequency: 50/60Hz Input Current: 1.27 Output Voltage: 11.4V Dimmable Lamp Connection: ...

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$0.00 - $0.00
$36.69
$36.69 - $36.69
$36.69
}

Explore Keystone Lighting – Performance, Innovation, and Reliability

Discover Keystone Lighting’s full line of high-performance LED solutions designed for commercial, industrial, and residential applications. From LED drivers and retrofit kits to tubes, panels, and area lights, Keystone delivers reliable performance and long-term energy savings with cutting-edge SmartDrive® and DirectDrive® technologies.

Features:

  • Wide selection of LED tubes, panels, troffers, area lights, and drivers
  • SmartDrive® and DirectDrive® technology for plug-and-play or ballast-bypass options
  • Title 24, DLC, UL, and Energy Star certifications for code compliance
  • Advanced controls compatibility including 0-10V dimming and Bluetooth® solutions
  • Long-lasting products with warranty-backed durability

Why Choose Keystone:

Keystone Technologies is trusted by contractors, distributors, and facility managers for delivering “Light Made Easy®.” Their focus on quality, innovation, and customer-centric design makes them a go-to brand for efficient and maintenance-friendly lighting upgrades.

Popular Applications

  • Office, retail, warehouse, parking lots, and schools
  • LED retrofits for fluorescent and HID lighting
  • New construction or remodel projects

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