Sunpark Electronic Power Compact Aquarium Ballasts - PL 40 watt, 55 watt,
65 watt 96 watt and 125 watt, twin tube, quad, FML lamps (1 and 2 lamp).

** NOTE: Ballasts include one or two - 4 pin square sockets (Gy10q), and can be removed and 4 pin straight (2G11) sockets installed.  See - Sockets and connectors: No Mount - # S2G11NM, Mounting - # PC4STU.  **

If changing to 2G11 Sockets, email for wiring diagram.

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