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Founded over 65 years ago, Keystone Technologies continues to evolve and grow their comprehensive line of highly reliable, electronic, magnetic, and HID ballasts. You will find Keystone products installed by many of the world’s leading lighting fixture manufacturers and contractors. They choose Keystone because of their quality, value and commitment to engineer only the best ballast products for…
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With the economical crunch over the past few years and the ever growing popularity of going green, converting hid to CFL has become a growing trend. By simply by passing the HID ballast and screwing in a Compact Fluorescent Lamp, business have discovered that the S/P Ratio (Scotopic to Photopic Lumens) is great enough…