I have just upgraded my LED lights to this bad boy. Its a 450w dimmable grow light, full spectrum.
I initially brought their small GL-1000 series light, but upgraded my tent and wanted something that was going to ensure it covered the the entire room.
This unit covers 5ft x 5ft for Veg and 4ft x 4ft for flowering (not sure how that works, but that's what they say)
I purchased it from Amazon (purely because it's fulfilled by Amazon, so if there are any issues, it's easier to return/resolve any disputes, as they aren't your daily disposable items)
They are priced at £419 but on Black Friday with Prime Discount and a further £25, I managed to get it for around £240!
I'll be putting this in my 1.2x1.2x2.0 tent.
Build quality seems solid, weighs a fair bit though.
Powered by Samsung LED's and Meanwell drivers.
20% OFF code: GB20OFFUK2 from the seller after purchase. Although the prime deal would have still been cheaper for me anyway.
Peace
Wu