Generally, warranties are as follows: 5 years for commercial grade electronic ballasts, 3 years for residential grade electronic ballasts, 2 years for HIDs, 3 years for sign ballasts, and 2 years for magnetic ballasts. For complete warranty information, please visit our Warranty page under the Company menu.
All ballasts have a date code on the side. Please see our Warranty page under the Company menu for more information on date codes.
You may place orders with us by faxing to our Order Line at 215-628-4412. You may also contact us to be set up for online ordering through our website.
We recently relocated our headquarters to Montgomeryville, PA - a suburb to the north of Philadelphia.
We have warehouses in Atlanta, GA, Boston, MA, Charlotte, NC, Chicago, IL, Dallas, TX, Denver, CO, Houston, TX, Indianapolis, IN, Los Angeles, CA, Memphis, TN, Miami, FL, Montgomeryville, PA, Phoenix, AZ, Portland, OR, San Francisco, CA, and Syracuse, NY.
We have been in business for over 60 years - our doors first opened in 1945.
Yes, many of our ballasts qualify for state, municipal, and utility rebate programs. You can potentially save quite a bit of money by using Keystone ballasts. Please contact us today to find out more about current rebate opportunities in your area.
Ballasts should only be installed by qualified electrical contractors. For detailed wiring diagrams and instructions, please select the proper ballast in our online catalog and download the specification sheet to find the appropriate wiring diagrams.