These requirements cover ballasts of the resistance@ reactance@ and electronic (high frequency) types for use with fluorescent lamps involving a potential of 2500 volts or less in accordance with the National Electrical Code@ ANSI/NFPA 70. A fluorescent-lamp ballast may be determined by investigation to be acceptable for use@ in a fixture or other device@ with electric-discharge lamps of other than the fluorescent type. Fluorescent self ballasted lamps and ballast adaptors are evaluated using the Standard for Self-Ballasted Lamps and Lamp Adapters@ UL 1993. The component ballast is evaluated to requirements in this Standard. A product that contains features@ characteristics@ components@ materials@ or systems new or different from those covered by the requirements in this standard@ and that involves a risk of fire or of electric shock or injury to persons shall be evaluated using appropriate additional component and end-product requirements to maintain the level of safety as originally anticipated by the intent of this standard. A product whose features@ characteristics@ components@ materials@ or systems conflict with specific requirements or provisions of this standard does not comply with this standard. Revision of requirements shall be proposed and adopted in conformance with the methods employed for development@ revision@ and implementation of this standard.
UL 935 BULLETIN-2008 history
2018UL 935 BULLETIN-2018 UL Standard for Safety Fluorescent-Lamp Ballasts (COMMENTS DUE: December 3@ 2018)
2017UL 935-1 BULLETIN-2017 UL Standard for Safety Discharge Lamp Control Devices@ Part 1 - General Requirements (COMMENTS DUE: April 10@ 2017)
2014UL 935 BULLETIN-2014 UL Standard for Safety Fluorescent-Lamp Ballasts (COMMENTS DUE: April 14@ 2014)
2013UL 935 BULLETIN-2013 UL Standard for Safety Fluorescent-Lamp Ballasts (COMMENTS DUE: December 02@ 2013)
2012UL 935 TGD-2012 UL Standard for Safety Fluorescent-Lamp Ballasts - Section / Paragraph Reference: 21.8 Subject: Adding new lamps to an existing fluorescent ballast certification (Edition 10: May 21, 2001)
2012UL 935 CRD-2012 UL Standard for Safety Fluorescent-Lamp Ballasts - Section/Paragraph Reference: Supplement SC (new) Subject: Ballasts intended to be dimmed using solid-state dimming controls electrically wired in series with the mains supply (Edition 10: May 21, 2001)
2012UL 935 BULLETIN-2012 UL Standard for Safety Fluorescent-Lamp Ballasts (COMMENTS DUE: June 19@ 2012)
2011UL 935 CRD-2011 UL Standard for Safety Fluorescent-Lamp Ballasts - Section/Paragraph Reference: 38.1 (Revised) Subject: Humidity Conditioning Test - R.H. Tolerance (Edition 10: May 21@ 2001)
2011UL 935 BULLETIN-2011 UL Standard for Safety Fluorescent-Lamp Ballasts (COMMENTS DUE: August 30@ 2011)
2009UL 935 BULLETIN-2009 UL Standard for Safety Fluorescent-Lamp Ballasts (COMMENTS DUE: February 15@ 2009)