Cheers Archie.
It a Northern Grow Lights kit I'm gonna be testing as soon as I have had my operation.
You can follow the other guys that have already started their tests here -
https://www.autoflower.org/threads/northern-grow-lights-test-team-home-diy-build-and-grow.54965/
They are also all testing dinafems - fruit auto stain as well as the Optic foliar ranger of foliar sprays ( I think they are all in on that test)
I been missing due to find a lump growing in my throat and been having tests and a biopsy with a operation likely to happen in the next week as long as I get the all clear, I'll be back a short while after the operation!
The light has 4 x Cree CXB3590 COBs and also sports 4 Kathod silicone lenses and is powered by a Meanwell driver @2100mA giving a total of 300W from the wall.
The light also has 4 pinned passive heat sinks , so it is totally silent.