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which boast high efficacy
(1) CFS21W/GR10q or (1) CFS28W/GR10q lamp(s)
-30ºC Maximum Case Temperature 194ºF
This is the Keystone Ballast HPS-100X-Q-KIT 100 watt sodium ballast transformer
KTEB-242-UV-RS-DW-KIT 120-277 Volt Compact Fluorescent Electronic Ballast No USPS which boast high efficacyWith origins dating back more than 50 years, Keystone Technologies is proud to offer a line up of highly reliable, electronic fluorescent ballasts. You will find Keystone products used by many of the worlds leading lighting fixture manufacturers and contractors. These organizations have chosen Keystone products because of their commitment to engineer only the best ballast products for the market. This ballast kit makes CFL ballast replacement a cinch.
