Impressive if so - every time I've designed something approaching that power level I've ended up needing forced air cooling.
> A: It's cooled through our large heatsink and ultra quiet Noctua fan. The fan only turns on above 75% brightness. At max power, the heatsink is cool enough to put your hands on it for a couple of seconds.
For brief contact (e.g., 1-3 seconds on adult-accessible parts), temperatures should stay below ~48-55°C depending on material; longer reflexive contact requires even lower limits (e.g., 43°C for extended exposure). A surface hot enough that hands can only tolerate it for "a couple of seconds" implies it's above this (likely 60°C+), risking second-degree burns.
I practice this means this product would not be allowed to be sold in EU. This would have been thoroughly tested to get the CE mark.
> All LED lights sold in Europe must carry the CE mark
https://wwbridge-cert.com/blog/posts/is-ce-marking-for-led-l...