While we wait for our local Aluminium company to deliver heatsinks, we have a 120W QBs in 3000K, on a black anodised aluminium heatsink.
With 288 x Samsung LM301B LEDs, they are 2.58uMol/J at 120W, pre-driver.
We're using an XLG-150-H-A driver, with 5 year manufacturer warranty, and 92% efficiency.
Good option for flowering a 60x60cm area.
Comes with hanger clips.