What this thread needs is a bit of Drum and Bass (said no-one but me) ... do yourself a favour and listen to this one.
Gun -> Trigga
Chase & Status, Bou - Baddadan ft. IRAH, Flowdan, Trigga, Takura
When I said a number of years ago, it was back in 2007 so the technology may have changed. You could get white LEDs but most of those available at the lower end of the consumer market were blue ones with filters*.
I perhaps should have mentioned my involvement was that the company had gone administration (a form of insolvency akin to Chapter 11 Bankruptcy in the US) and I was trying to sort out the mess, find a buyer for the business and try to save as many jobs as possible. Unfortunately there was not one employee of the company who wasn't a complete bum-hole. It's maddening when you're dealing with a bunch of people acting against their own self-interest. They all seemed to want to make my job as difficult as possible. Net result: they all got made redundant.
The company's premises were owned by somebody you would know as King Charles the Spaniel 3rd.
* Of course, they could have been bullshitting me about this, as they tried to about almost everything.
One I had almost completely forgotten about, but "rain" triggered something in the dustier corners of my brain. That and it's been pissing down with rain all day.
Sorry. I haven't yet watched the video. But a number of years ago I was involved with a company that produced high end LEDs , including for the US military.
I was told that white LEDs were expensive to manufacture and that most "white" LEDs were blue LEDs with filters.
It was green LEDs that were used for military purposes (landing planes on aircraft carriers) and the company had a patent for their method of producing green LEDs up to military standards.