If your goal is local delta measurements, then by all means the original works great.
PAR measurements were over 10% out under a real LED lighting system, which makes the older unit a poor standard for that application.
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Custom electronics purveyor. blueAcro.com
Current Tank Info: 90g SPS+mixed reef (10 yrs): LEDBrick LEDs, 40g custom sump, Ca reactor, chiller, Vortech, lots of custom electronics
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