Response to Hello William.  The J & J Electronics Color Splash XG Series LED Spa Fixture LPL-S1C-120-50-P is compatible with the Hayward Niche model SP1610C.  Attached please find a copy of the J & J Electronics Color Splash Data Sheet which identifies compatible Niches across a variety of manufacturers.  Color Splash Data   Additional technical support is available from J & J at telephone 800.735.4553.  

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