DIY LED Monolight

I’ve been quite focused on light building projects recently, but before I move on to other targets for my enthusiam I felt I had to make something with one of the Nichia COB LEDs I bought last year. The Nichia chips have a power rating of 37 watts, a quoted CRI of 95+ and what appears to be a fairly serious level of light output. All very good, but the thing that held me back …

Upcycled Monitor: LED Light Panel

When I was planning a light panel build using a reel of high CRI LEDs I bought recently, it struck me that repurposing one of the old 4:3 aspect ratio monitors that don’t get used any more, since everything switched to wider format, might be a good starting point. I wasn’t sure whether the backlights in these were LED based, but that didn’t really matter as they weren’t particularly bright in any case, so weren’t …

The Improved DIY Tubelight

After the unbridled fun of building my pipe light a few months back it struck me that since the build was in part my justifcation for buying a 3D printer, it would be a good idea to revisit the project and do it better using 3D printed parts. Now that’s the sort of challenge that could cause a load of buyer’s remorse if the result isn’t better and the build time a lot shorter. Risky, …

Make a Pipe Light

One of the surprises from the testing for my post on LED light quality was the spectrum produced by my generic 3W SMT COB LEDs: while not as good as the 95 CRI Nichia LEDs, they looked pretty good considering they cost about 50p each. One other thing in their favour is that they run off a voltage of 3.2 to 3.4 volts. So while my high CRI Nichia COB LEDs may produce a fantastic …

Build Your Own Spectrometer

Not exactly a photography related build, or at least not directly, but if you want to build your own LED lighting and you don’t happen to have a lab with a CRI testing facilities at your disposal, a spectrometer is a useful thing to have around. Whenever you want to check out those bargain LEDs you bought before you commit to building them into a light, stick them in front of this and look at …