Lighting?

mirror

mirror

I'm sure it's been done but I would think:

The mirror backing would likely corrode fairly quickly from the saltwater /humidity and the 1/4 - 1/2" glass would retain more heat and radiate that heat for longer periods Vs. thin metal reflectors which disperse better heat and cool quicker. Light reflected by a mirror produces less lumens then what it appears to produce. Reflectors are designed to direct light inward and downward compare to the mirror which filters reflected light and disperses the light outward in all directions in baud forum (depending on the light source, e.g. focused lasers very efficiently use mirrors.)

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Reflectance
When light strikes an opaque surface, and by opaque we mean a surface that will not transmit light, some of the light is absorbed and some reflected. The ratio of the luminous flux reflected to the luminous flux received is know as reflectance.
If a small element of the surface receives 100 lumens and reflects 70 lumens, then the reflectance is 0.7, or it can be expressed as a percentage as 70%. The remaining 0.3 or 30% would be absorbed.
Diffuse Reflectance

Different surfaces also reflect light in different ways. For example, surfaces such as paper, emulsion paint, carpets and so on, exhibit what we call matt or diffuse reflection, that is, the light reflected from the surface is scattered in all directions.
specular Reflection

At the other extreme is mirror or specular reflection exhibited by shiny metal surfaces such as chrome, silver or pure aluminum.
It is most important to realize that although specular reflections produce a clear image in the surface of the material, the actual amount of light reflected may be deceptively low.
A matt white painted surface, for instance, has a reflectance of 85% to 90% compared with only 60% specular reflectance from a polished stainless steel surface, while polished aluminum will be approximately 85%.
Mixed Reflection

Many surfaces such as gloss paint, wood, plastic and so on, exhibit a combination of these two types of reflection.
Gloss paint, for example scatters most of the light that it reflects, but also produces a specular reflection in the surface of the paint. to 90% compared with only 60% specular reflectance from a polished stainless steel surface, while polished aluminum will be approximately 85%.
 
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