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About Keystone

... from World War II, Keystone Technologie... ...OEM and distributor customers. Since 194...

Quick Ship Program

...Quick Ship eligible products.   Cli... ...sp;    ELECTRONIC CATEGOR... ...igh Efficiency (CEE Compliant)  ... ... Lite F17/25/32 T8, NEMA Premium, Standard Output ...

Our History

...m if there were any products that were always in high demand but short 
supply. The res... ...ware and electrical stores in Philadelph... ...w with the changing demands of the light... ... offer magnetic and electronic ballasts ...

Program Start T8 Ballasts

...daylight sensors. • CEE and NEMA Premium Qualified Keystone’... ...ned the prestigious NEMA Premium mark and are qualif... ... Energy Efficiency (CEE) for the highest... ...m start systems are proven to dramatical...

Statement of Warranty

...of its magnetic and electronic lamp ball... ...llast.   If it appears within the s... ...his warranty is not applicable if the ba... ...ety of Underwriters Laboratories, Inc., ... ...arranty is also not applicable if the ba...

All Products

... Electronic Fluorescent Keystone’s ... ...ncy, every Keystone electronic ballast is “burned in” at the factory to ensure exceptional per... ...d for even the most demanding HID lighti...

Retrofits and Rebates

...(HPT8) Ballasts are CEE Listed at www.cee1.org and NEMA Premium approved. Click here to down...

Score Big with Keystone HID

... a Full Line of HID Products: • ... ...motion is valid for Electrical and Light...

Custom Solutions

...ballast innovation, Keystone Technologie...