CXM22 Gen3 series offers excellent performance on par with CXB3590 and CLU048-1818 at a groundbreaking price. CXM22 is dimensionally identical and uses all of the same accessories as the popular CLU048 chips.
CXM22 is a nominal 50V COB which can operate up to a maximum of 2400 mA (approximately 130W). Best efficiency is seen below 75W with this chip. This chip offers similar efficiency to a CXB3590 and Citizen 1818 of the same color temperature
Precut Arctic thermal pads are available for the CXM22 and CLU048 series here
Thermal Pads are 0.5mm thick Arctic brand, cut to size from larger sheets. You can read about them here
Tech specs on the COBs are found on the datasheet here