The Kessil A2000 really took us by surprise when it was first shown off at the Regional Aquarium Workshop earlier this year. It’s not that Kessil made a bigger light which took us off guard, but that they made one so big as the Kessil A2000, and now we’ve got our first look at the heart of what makes this light run.
The Kessil A2000 is a beast of an LED spotlight, with a massive concentration of of diodes packed into Kessil’s own in-house multichip technology called the Dense Matrix Array. For the A2000, Kessil has pulled out all the stops to cram in 440 light emitting diodes into a PCB and thermal package no bigger than the surface area of a credit card.
The 440 LED Dense Matrix Array (multichip) pictured here is a variant made solely for the purposes of testing, which is why it only has white-light LEDs, which all appear yellow due to their phosphor coating. 
When we joked that this multichip was worthy of being made into electronic jewelry, we were informed that this LED module requires a minimum of 150 watts of power to actually turn on.
We really should have taken a photo of this 440 LED in our hand so you could see how small and imposing this thing is, and how thick the copper thermal pate on the bottom of it is as well. It’ll probably be a while until we hear from Kessil about the A2000 again so hopefully this will collectively tide us over until we can see this beast in action.
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