Sign Tubes
 
 
Free Shipping On
Orders Over $750
  
Speak With Your Lighting Specialist
248-276-9640
Weekdays
8am - 5pm EST
 

 
248-276-9640   Monday - Friday   8am - 5pm EST
FREE Shipping on Orders Over $750
 
Search
Manufacturer
Ballast Type
Browse by Manufacturer
Color Selectable LED
LED Barn Lights
LED Canopy Fixtures
LED Corn Cob Retrofits
LED Downlight Retrofits
LED Flat Panels
LED PL Lamps
LED Troffers
LED Undercabinet Lighting
LED Wall Packs
LED Light Bulbs
LED A19 Bulbs
LED Tube Lights
LED Filament Bulbs
LED Globe Bulbs
LED PAR Bulbs
LED PL Lamps
LED Circline Bulbs
LED Reflector Bulbs
LED HID Retrofit Bulbs
Corn Cob LED Retrofit
Wall Pack ShoeBox LED Retrofit
High Bay Low Bay LED Retrofit
Adjustable LED Retrofit Bulbs
HPS Match LED Retrofits
Ballast Compatible LED Retrofit
Low Voltage LED HID Retrofit Bulbs
Fixture LED Retrofit Kits
Circular LED Retrofit Light Engines
Rectangular LED Retrofit Light Engines
LED Linear Retrofit Strip Kits
LED Retrofit Plate Kits
LED Indoor Light Fixtures
LED Flat Panels
LED Troffers
LED High Bay Fixtures
LED Ready Fixtures
LED Wraparound Fixtures
LED Vapor Tight Fixtures
LED Strip Fixtures
LED Undercabinet Lighting
LED Temporary Jobsite Lighting
LED Outdoor Light Fixtures
LED Area Lights/Parking Lot Fixtures
LED Wall Packs
LED Flood Lights
LED Canopy Fixtures
LED Security Lights
LED Wall Sconces
LED Barn Lights
LED Downlights and Trims
2 Inch LED Downlight Retrofits
3 Inch LED Downlight Retrofits
4 Inch LED Downlight Retrofits
6 Inch LED Downlight Retrofits
8 Inch LED Downlight Retrofits
10 Inch LED Downlight Retrofits
Low Profile LED Downlights
LED Recessed Cans
Downlight Trims
LED Downlight Accessories
Juno 120V Track Lighting
120V Track Lighting Heads
Trac-Lites 120V Track Sections
Trac-Lites 120V Track Accessories
Trac-Master 120V Track Sections
Trac-Master 120V Track Accessories
Juno Trac 12 LED Track Lighting
Trac 12 Track
Trac 12 LED Track Heads
Trac 12 LED Track Pendants
Trac 12 LED Bulbs
Trac 12 Accessories
LED Exit and Emergency Lights
LED Bug Eye Emergency Lights
LED Exit Emergency Combos
LED Exit Signs
LED Drivers
Constant Current LED Drivers
Constant Voltage LED Drivers
Emergency LED Drivers
Compact Fluorescent
T2 Micro CFL Bulbs
Enhancement Suite CFL Bulbs
Spiral CFL
3 Way CFL Bulbs
Globe Shaped CFL
Dimmable CFL
5000K Day Light CFLs
MiniCandle Shaped CFL
Enclosed Rated CFL
Candelabra Base CFL
Decorative CFL Bulbs
R20/ R30/R40 Flood CFL
Incandescent Shape CFL
CFL PAR Lamps
GU 24 CFL Light Bulbs
High Wattage CFL Bulbs
277 Volt CFL Bulbs
PL CFL Light Bulbs
Fluorescent Light Fixtures
High Bay Fluorescent Fixtures
T5 Fluorescent Lighting Fixtures
Recessed Fluorescent Fixtures
Wall/Surface Mount Fixtures
Fluorescent Cloud Fixtures
Fluorescent Strip Fixtures
Industrial Light Fixtures
Home Lighting Fixtures
HID Ballast Kits
Metal Halide Ballast Kits
F-Can Metal Halide Ballasts
HPS Ballast Kits
F-Can HPS Ballasts
Metal Halide Lamps
Venture Natural White
Super Pulse Start Long Life
Ceramic Metal Halide
Tubular Metal Halide
Open Rated Metal Halide
Pulse Start Metal Halide
Reduced Jacket MH
Medium Base MH Lamps
Coated Metal Halide
Clear Metal Halide
HPS to MH Retrofit Lamps
High Pressure Sodium Lamps
Medium Base HPS Lamps
Mogul Base HPS Lamps
Fluorescent Ballasts
Circline Ballasts
Compact Fluorescent Ballasts
Electronic T5 Ballasts
Electronic T8 Ballasts
Fluorescent Dimming Ballasts
Instant Start Ballasts
NEMA Premium T8 Ballasts
Plastic Sign Ballasts
Program Start Ballasts
Linear/U-Bend Fluorescent
T5 Fluorescent Lamps
T8 Fluorescent Lamps
Fluorescent Circline Lamps
Lutron Dimmers and Switches
0-10V Dimming Controls
Ariadni C-L Dimmer Switches
Contour C-L Dimmer Switches
Diva C-L Dimmer Switches
Maestro C-L Dimmer Switches
Lutron Wallplates
Electrical Supplies
Dusk-To-Dawn Photocell Sensors
Intermatic Timer Parts
LED Surge Protection
Low Voltage Transformers
Mechanical Timer Switches
NEMA Twist Locks
Occupancy Sensors
Power Distribution Blocks
Pre-Insulated Connectors
Reflect-A-Bay Accessories
Wire Rope Fixture Hangers
Wireless Dimmer Switches
Wireless Occupancy Sensors
Wireless Switches
Light Sockets and Adapters
American Dryer Hand Dryers
Products Made In USA 
LED Christmas Lights
LED 5mm WideAngle Christmas Lights
LED C6 Christmas Lights
LED G12 Globe Christmas Lights
LED Mini Christmas Lights
LED Christmas Light Accessories
Clearance LED Christmas Lights

If you do not see what you are looking for, or if you would like to discuss your project with one of our inside sales staff,
please give us a call at 248-276-9640 or Contact Us. We even have a form specifically for when you Can't Find It.

Search Results

You searched for all products made by Keystone Technologies
Keystone Technologies Logo

Keystone Technologies was founded more than 70 years ago by Marvin Spielman and Harold Fox, brothers-in-law returning home from World War II. Fluorescent lighting was just becoming a popular, energy-efficient alternative to incandescent, so the two budding entrepreneurs formed Keystone at A and Cortlandt Streets in Philadelphia with a singular focus on manufacturing ballasts and transformers. With the advent of LED technology, we expanded our product offer beyond ballasts to include LED drivers. Now in our third generation of family leadership, Keystone is focused on the future, and continues to evolve with the changing demands of the lighting business.

Displaying products 1 - 1 of 1 results
Keystone 50 Watt 120 Volt HPS Ballast Kit
Keystone Technologies
50 Watt 120V HPS Ballast Kit
In stock
Our price (Before qty discounts*): $25.97
50 Watt 120V HPS Ballast Kit
Keystone Ballast HPS-50R-1-KIT - 50 Watt S68, High Intensity Discharge - High Pressure Sodium Ballast Kit - Replacement Ballast Kit for Advance Ballast 71A7807, Sylvania Ballast LU50/120R, Venture V90B1120 and MagneTek 1233-35U.

Another route to your destination is to click on the Show Filters link located in the upper left hand side of the page. Then, use the product attributes to drill down to the item(s) that you are looking for.

If you have any ideas or comments to help us improve our search results, attributes or any other topic, please, let us know.

Should you happen to pass by the break room, please feel free to grab a complimentary snack. The blueberry muffins are delicious.
Shopping Cart
Your cart is empty.
Products
8 Inch 12/16/22 Watt LED Commercial Downlight Retrofit Color Selectable 3000/3500/4000K
EiKO Wattage and Color Selectable Commercial Downlight Retrofit
15 Watt 1200 Lumen 60 Degree Beam Dimmable LED PAR38 Wide Flood Light Bulb 90 CRI 120V 2700K
Satco LED Dimmable Par 38 Flood Light Bulb
Search Shopping Lists
 
 
 
Customer Service Account Company Info Help and Resources
Contact Us My Account About Us Learning Center
Can't Find It? Check Order Status Privacy Policy Product Documentation
Request a Quote Shopping Cart Return Policy Shopping Cart Help
Customer Comments Shipping Policy Freight Carriers
Customer Reviews Sitemap
** Our cross referenced part numbers (Sylvania, Phillips, GE, Maxlite, Universal, Grainger, Sola, etc) are intended only as guides and may represent another lamp/ballast company's most similar product rather than an identical match. Individual manufacturer's performance values should always be consulted.
Click to verify BBB accreditation and to see a BBB report.
National Association of Electrical Distributors Member
© 2021  Green Electrical Supply LLC.
maximize your green®