I tend to lean more towards a monochromatic scale with varying values and perhaps a touch of color. You can refer to our sister company's color schemes as a reference if needed for a splash of color as this logo is an off-shoot of this company, but still independent and separate, so it needs to have its own unique branding. Perhaps using the current Lighthouse Outdoor lighting logo design as mere touchstone to some degree.
Lighthouse Outdoor Lighting website for reference:
http://www.Lighthouse-Lights.com
I like Grey / Blue / Black color schemes but I am not opposed to other inspiration. If it "pops" I'll probably like it too.