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A new Robertson lamp ballast. The part no. is CC1420.
It is for a F14T8, F15T8, F14T12, F15T12, F20T12
Rated at 120v 60Hz .35 amp
Equivalent to Philips-Advance LC-14-20-C, Keystone CF-1322M-CC
the dimensions are 3.1" long x 1.2" tall by 1.7" wide