Yes. Thanks for asking Colin. Good to speak with you this morning. So fundamentally, the applications that we’ve done so far of our HPDI system to existing engines have been to apply the product that we use today for natural gas, with no modifications. We expect that there will be some modifications as we develop and optimize the system to production, but we’re in this phase basically demonstrating the capability, which has been really I would say, frankly exciting, right, for us and for our customers to see the potential to apply our fuel system off the shelf, if you will. And already achieved this on the under 15% to 20% improvement in power and torque compared to diesel or natural gas, which in general, our parity [ph] rate, we’re talking about HPDI with natural gas tends to be at the parity with the diesel engine on power and torque. Whereas with a hydrogen HPDI, we can actually increase by 15% to 20% similarly with efficiency, we see this five percentage points, four percentage points to five percentage points improvement in brake thermal efficiency, which turns into about a 10% improvement in engine efficiency on the kind of miles per gallon, or liters per 100 kilometers kind of basis. So, vehicle type efficiency. So these are really big benefits that we’re demonstrating the lab, and now we’re looking forward to demonstrating them on the road, and basically handing people the keys, but fundamentally the product development to support that so far is relatively straightforward from our perspective. But we have work to do, no OEM is going to take it, the HPDI system bolted onto their engine and start feeding in hydrogen and selling the customers without the validation steps. So, I think, these are programs that are multiyear programs to bring hydrogen market, but frankly that’ll be plenty fast enough relative to the infrastructure, developing the availability of affordable hydrogen.