Spider Farmer G8600 - Very cheap but is it any good?

This light is from the G Series by Spider Farmer badged as the 'Cost Effective' range of lights. I had low expectations but was very pleasantly surprised by the quality of this light and especially the performance.
I tested it in a 5x5 or 1.5m x 1.5m at a relatively low hanging height of 12" or 30cm and recorded an average PAR of 989 µmols and a system efficiency of 2.57 usable PPFD/watt. This is a very high average PAR and just on the limit of requiring elevated CO2 to utilise the high PAR intensity.
You could argue it would be better to hang a little higher for more even PAR distribution and a slightly lower average PAR.
Spider Farmer recommend using this fixture in a 4x4 which would result in an average PAR of about 1,500 µmols which would require elevated CO2 in a closed grow room.

Spider Farmer is offering special offer for the 420 celebration, promo from 4/20-4/24.
Spider Farmer G8600 Light: https://www.spider-farmer.com/product...
USA(worldwide): https://spider-farmer.com
Canada: https://spiderfarmer.ca
Europe: https://spiderfarmer.eu
UK: https://spiderfarmer.co.uk
Australia: https://spiderfarmer.com.au
Thailand: https://spiderfarmer-th.com
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#spiderfarmerled
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