Hi, /diy/, I'm in need of some electronics advice. I am a complete beginner, and I can't stress that enough. A few years back I bought a bunch of resistors, white LEDs and some copper/normal wire, switches and that sorta thing (pictured) so my friend can walk me through a project but it never got off the ground.

Now I want to make this small armature for a "horseshoe" lamp on top of my desk on the wall, so I can have plenty of strong light from multiple directions for other DIY projects and miniature painting.

I've the stuff, I'm reading up on things and me and a friend even drew up simple scehmatics and how it'll be built. Thing is... it's been so long, I can't remember the resistance, voltage or anything of both the resistors or the LEDs.

Is there any way to find this out, perhaps by markings or tests that won't fry the fucking things? If it's any help, the resistors have a gold, black, brown and then green band of apparently varied (slightly) thickness. Final aim is to also connect the setup to the mains socket and the flick switch for ON/OFF and the two press switches (maybe) to turn on one side only for things like painting with directional light.