References
- Garbowicz, G. 1992. An improved hybrid ballast. J of the IES 21 (no. 2):42–46.
- Garbowicz, G. 1994. Hybrid ballasts II—High efficiency type ballasts for 32 W T8 and 34 W T12 lamp systems. J of the IES 23 (no. 1):22–30.
- Illuminating Engineering Society of North America. 1982. LM-40 IES approved method for life performance testing of fluorescent lamps. New York: IESNA.
- Nelson, W. 1983. How to analyze reliability data, vol. 6. Milwaukee, WI: American Society for Quality Control.
- Crawford, US Pat. 4,954,749.
- Garbowicz, G. US Pats. 5,175,470, 5,208,511, 5,243,258 & 5,363,017.