The Current USA Outer Orbit LED Transformer is for Outer Orbit Models 1040-1044 (the 24", 36", 38" and 72" Outer Orbits with 150W HQIs and compact fluorescent bulbs). Also for the Outer Orbit Pendant 1050 and 1051.
Other Items from Current USA Miscellaneous Parts Replacement Satellite Docking Mounts 4-Pack - 70 Watt HQI Metal Halide Replacement Ballast - 150 Watt HQI Metal Halide Replacement Ballast - 10' Replacement Cord for SunPaq Retrofit Compact Fluorescent Lights - Replacement On/Off Rocker Switch for all Current Models - Non-Water Tight White Compact Fluorescent Lamp Socket - SunPod Metal Halide 6-Led Panel - Outer Orbit End Panel, Switch Side - Outer Orbit End Panel, Non-Switch Side - Outer Orbit LED Transformer - 32 and 40 Watt Raw Compact Fluorescent Ballast -