Industrial Lighting Solutions 7330SWAUVC Sanitron S37A/S37B/S37C Photo Science 7330Swa, Single Pin Uv Bulb, 40W Effective hours rating: 12,000hrs - ultraviolet germicidal light bulb Used in used in sanitron s37a s37b s37c photo science 7330swa 7330w Length: Approx. : 33.50" t5 base single pin Bulb type: T5 style quartz glass