Aqua Illumination (AI) Hydra 52 (non-HD). Fully working (including all of the LEDs), but has no lower plastic housing (part # AI-H52BHB) and the part is difficult to track down. If someone is clever with drafting software, a replacement should be simple to 3D print. 

Includes the original power supply. 

Aside from the stock photo, what is pictured is what you will receive.