UV-C (Germicidal) Lamp - fits into Sterilight (R-Can) S12Q-PA, S12Q, S12Q-GOLD, S24Q, S24Q-GOLD, S40Q, SUV 24P-100P, SSM-39, Calmag, Cal Ultra UV Systems. MOL - 84cm (33.2") / 4 stepped pin base. Compatible lamp. 40W