Apparently there is a worldwide shortage of shipping containers and the cost of one has quadrupled and even more.
The cheapest shipping is by boat.
It takes longer to load and unload the containers because of a lack of dock workers and truck drivers.
Yeah, I tried to buy a crate of 200lm/w 18w domestic lamps, but it was horrendous. Many packages move on what we see as passenger planes. Which for a while, were barely flying at all. Nobody thought to save their airline by pulling the seats out. They just didn't fly. So the likes of DHL with cargo only planes were making deliveries, but the low cost mail had to hitch a ride on a boat. Filling the boats. Who rubbed their hands together, and doubled the shopping costs as we had no choice. My lamps already had a price breakdown that made postage and taxes the bulk of the cost, so doubling that side of the cost was putting them around £5 each to me. What can you sell a 18w 3000 lumen lamp for, when it's £5 before packing it and sending it to my customer. A cost that eBay&paypal would grab 15% of. £10? I don't think so... when it's cheaper to but a couple of less impressive lamps to get the same illumination.
Heatsinks should be positioned with their fins in line with the air flow across them. Or if no fan is used, the board would be best stood on it's edge, with the fins vertical to allow the convection currents to flow. I think these board may end up side by side, so for a fan to do them all in one go, it would be a crosswind across the boards. Which would dictate the fins orientation. As they want to be in line with that air current.
drawing pics and wiping the metadata is so time consuming... Have I described it clearly enough?