If the Marshydro would have used a different diode in the sp series I would buy some still using the Epistar.
I've been using the Marshydro Epistar 320 for two years not even close to what they advertise.
I've been looking at the Nalite products came across the Sunplix lights they are rebranded Nalite at twice the price Nalite now says I can't buy from them.