Light Bulb by Satco in Gloss White finishSATCO’s Type B ballast bypass lamps, designed to replace T8 or T12 medium bi-pin fluorescent lamps are available in 2′, 3′, and 4′ lengths. They are engineered for single or double-ended wiring options and will not light unless ballast is bypassed. Commercial venues, schools, hospitality, health care – any large scale lighting application – will benefit from immediate energy savings and less maintenance.