solar water heating panel

A solar heating panel is used to heat water, why is the top surface painted black?????
To absorb the heat.
White would reflect it
Side by side testing of eight solar water heating systems
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Solar Heater, solar heating, solar panels, solar water $1,250.00 |
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400px DESIGN BUILDING SOLAR HOME HEATING PANEL WATER++ $18.99 |
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SOLAR HOME HEATING HEAT BUILDING PANELS SKYLIGHT WATER+ $16.99 |
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SOLAR ENERGY Heating Water architecture 1939 sun panels $9.95 |
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DIY SOLAR PANEL PLANS FOR HOT WATER & HEATING $6.50 |