Pict. 13: Setting the
moon phase
By switch 1, the moon phase is activated. With No. 2, start and end times (3) are entered. The
brightness (4) should not be too high so that the zooxanthellae of corals doesn't practice any
photosynthesis at night. By switch 5, the moon phase can be set. The white dot on the scale (7)
features a full moon, the red adjustable point the set moon phase.
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