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Keystone Technologies

Keystone Technologies was founded in 1945 by Marvin Spielman and Harold Fox. Starting with fluorescent ballast, Keystone has expanded their product line to fluorescent lamps, LED drivers, LED tubes and lamps.  

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Keystone KT-EMRG-LED-5C-500-K1-IP LED Emergency Battery Backup - LeanLight Sold out
$108.49 - $108.49
$108.49
$108.49 - $108.49
$108.49

Keystone KT-EMRG-LED-5C-500-K1-IP LED Emergency Battery Backup

Keystone Technologies
Out of stock

Keystone KT-EMRG-LED-5C-500-K1-IP Keystone's emergency LED fixture delivers reliable backup lighting when you need it most. This compact unit featu...

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$108.49 - $108.49
$108.49
$108.49 - $108.49
$108.49
Sold out
Keystone Technologies KT-EMRG-700 120-277V, 600-700 LUMENS, 17-215W, Lighting Ballast… - LeanLight
$72.99 - $72.99
$72.99
$72.99 - $72.99
$72.99

Keystone Technologies KT-EMRG-700 120-277V, 600-700 LUMENS, 17-215W, Lighting Ballast…

Keystone Technologies
Only 10 left!

KEYSTONE TECHNOLOGIES KT-EMRG-700 120-277V, 600-700 LUMENS, 17-215W, Lighting Ballast…nKEYSTONE TECHNOLOGIES KT-EMRG-700 120-277V, 600-700 LUMENS, ...

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$72.99 - $72.99
$72.99
$72.99 - $72.99
$72.99
Keystone KTLD-15-UV-PS300-54-VDIM-LP1 Power Select 15W LED Driver - 200-300mA, 120/277V - LeanLight Save 14% Save %
$24.99
$24.99 - $24.99
$24.99
$21.39
$21.39 - $21.39
$21.39

Keystone KTLD-15-UV-PS300-54-VDIM-LP1 Power Select 15W LED Driver - 200-300mA, 120/277V

Keystone Technologies
248 in stock

Keystone KTLD-15-UV-PS300-54-VDIM-LP1 Power Select 15W LED Driver delivers reliable constant current performance for professional lighting installa...

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$24.99
$24.99 - $24.99
$24.99
$21.39
$21.39 - $21.39
$21.39
Save 14% Save %
Keystone KTLD-25-UV-PS450-54-VDIM-LP2 Power Select 25W LED Driver - 300-450mA, 120/277V - LeanLight Save 14% Save %
$24.99
$24.99 - $24.99
$24.99
$21.39
$21.39 - $21.39
$21.39

Keystone KTLD-25-UV-PS450-54-VDIM-LP2 Power Select 25W LED Driver - 300-450mA, 120/277V

Keystone Technologies
20 in stock

Keystone Technologies KTLD-25-UV-PS450-54-VDIM-LP2 Power Select LED driver delivers reliable 25-watt constant current output with field-selectable ...

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$24.99
$24.99 - $24.99
$24.99
$21.39
$21.39 - $21.39
$21.39
Save 14% Save %
Keystone KTLD-25-UV-PS600-42-VDIM-LP2 Power Select 25W LED Driver - 450-600mA, 120/277V - LeanLight Save 6% Save %
$24.99
$24.99 - $24.99
$24.99
$23.45
$23.45 - $23.45
$23.45

Keystone KTLD-25-UV-PS600-42-VDIM-LP2 Power Select 25W LED Driver - 450-600mA, 120/277V

Keystone Technologies
219 in stock

The Keystone Technologies KTLD-25-UV-PS600-42-VDIM-LP2 is a premium 25-watt constant current LED driver engineered for professional lighting instal...

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$24.99
$24.99 - $24.99
$24.99
$23.45
$23.45 - $23.45
$23.45
Save 6% Save %
Keystone 12 watt 120/277 Volt LED Emergency Driver Kit KT-EMRG-LED-12C-1200 - LeanLight
$92.99 - $92.99
$92.99
$92.99 - $92.99
$92.99

Keystone 12 watt 120/277 Volt LED Emergency Driver Kit KT-EMRG-LED-12C-1200

Keystone Technologies
25 in stock

The Keystone KT-EMRG-LED-12C-1200 12 Watt 120/277 Volt LED Emergency Driver Kit delivers reliable backup power for LED fixtures during outages. Thi...

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$92.99 - $92.99
$92.99
$92.99 - $92.99
$92.99
Keystone 12 Watt 120/277 Volt LED Emergency Driver Kit - KT-EMRG-LED-12C-1200 - LeanLight
$192.03 - $192.03
$192.03
$192.03 - $192.03
$192.03

Keystone 12 Watt 120/277 Volt LED Emergency Driver Kit - KT-EMRG-LED-12C-1200

Keystone Technologies
32 in stock

The Keystone 12 Watt 120/277 Volt LED Emergency Driver Kit delivers reliable backup power for LED fixtures in commercial and institutional settings...

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$192.03 - $192.03
$192.03
$192.03 - $192.03
$192.03
Keystone KTLD-24-UV-24V Constant Voltage LED Driver 24W Max 24V Output - LeanLight
$54.99 - $54.99
$54.99
$54.99 - $54.99
$54.99

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

Keystone Technologies
Only 9 left!

Keystone KTLD-24-UV-24V Constant Voltage LED Driver delivers reliable power for 24V LED lighting systems. This 24W maximum output driver accepts un...

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$54.99 - $54.99
$54.99
$54.99 - $54.99
$54.99
Keystone KTEB-332-UV-IS-N-P Instant Start Normal 3 Lamp T8 Fluorescent Ballast - 50/60Hz, 120/277V - LeanLight
$27.99 - $198.00
$27.99 - $198.00
$27.99 - $198.00
$27.99

Keystone KTEB-332-UV-IS-N-P Instant Start Normal 3 Lamp T8 Fluorescent Ballast - 50/60Hz, 120/277V

Keystone Technologies
132 in stock

Keystone KTEB-332-UV-IS-N-P T8 Instant Start Electronic Ballast for 3-Lamp Fluorescent Systems. Power three F32T8, F25T8, F17T8, or F40T8 fluoresce...

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$27.99 - $198.00
$27.99 - $198.00
$27.99 - $198.00
$27.99
Keystone Technologies KTEB-228HE-UV-PS-SL 1 or 2-Lamp T5 High Efficiency Ballast - LeanLight
$29.99 - $470.00
$29.99 - $470.00
$29.99 - $470.00
$29.99

Keystone KTEB-228HE-UV-PS-SL T5 Electronic Fluorescent Ballast, 1 or 2 Lamp, F28T5 F21T5 F14T5, 120-277V, Program Start

Keystone Technologies
37 in stock

Keystone KTEB-228HE-UV-PS-SL High-Efficiency T5 BallastTransform your lighting experience with the Keystone KTEB-228HE-UV-PS-SL electronic ballast....

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$29.99 - $470.00
$29.99 - $470.00
$29.99 - $470.00
$29.99
Keystone MH-1500A-P-KIT - LeanLight
$249.99 - $249.99
$249.99
$249.99 - $249.99
$249.99

Keystone MH-1500A-P-KIT

Keystone Technologies
12 in stock

Keystone MH-1500A-P-KIT 3/1 HID Metal Halide Ballast Kit, Type 5-Tap, 1500Watt, Voltage Rating 120/208/240/277/480, Contents Ballast, Capacitor, Mo...

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$249.99 - $249.99
$249.99
$249.99 - $249.99
$249.99
Keystone KT-LED27PSHID-EX39-850-D /G4 HID Replacement LED Corn Light Bulb - Mogul Base, 5000K - LeanLight
$74.62 - $74.62
$74.62
$74.62 - $74.62
$74.62

Keystone 27W LED Corn Bulb EX39 5000K - KT-LED27PSHID-EX39-850-D /G4

Keystone Technologies
28 in stock

Illuminate Your Space with the 27W LED Corn Bulb EX39 5000K Transform your lighting experience with Keystone Technologies KT-LED27PSHID-EX39-850-D ...

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$74.62 - $74.62
$74.62
$74.62 - $74.62
$74.62