Reddit mentions of Deep Blue Solarflare Micro LED 6700k Light

Try to answer as best I can :)

• Starting small is actually... strangely... not as good as starting big. At that size, you wont want to keep anything other than a couple ghost or cherry shrimp. Nothing else will be happy with an environment that small. No, not even bettas. Bettas like to explore and poke around like all fish.
  
  
• EcoComplete is a good substrate
  
  
• That filter is a bit big for what you're doing. It'll work, but it's unnecessary. If you plan on keeping maybe 5 shrimp, you wont even need a filter. If you want one, a sponge filter will work nicely.
  
  
• Lighting depends on the plants you want to keep. Honestly, I keep a lot of my jars of this size in my window, but if you want a light, there is plenty of small LED lights. I think I have this http://www.amazon.com/gp/product/B00AXNQ9OU/ref=oh_aui_detailpage_o04_s01?ie=UTF8&psc=1 over a 3-4g bowl right now. It works for my mosses and anubias.
  
  
• Plants... Plants for this are plants that will stay small. Floaters will be excellent - duckweed, dwarf water lettuce, frogbit, salvinia, etc. Mosses are great, and I've had good luck with Anubias, Lobelia, and some Crypts. Oh, and marimos look adorable in small containers :) Anything can be trimmed down to fit, honestly. It's just up to how much maintenance you want.
  
  
• Heater isn't necessary for just shrimp as long as your house stays in the 70s.
  
  If you want low maintenance, I actually just recommend you go with a 10g or larger to start with. It may seem daunting, but it opens up your options significantly to learn what you like and what works for you better.

Deep Blue Micro LED 6700k Light

Edit: they also make an actinic version.

http://www.amazon.com/dp/B00AXNQ9OU/ref=wl_it_dp_o_pC_S_ttl?_encoding=UTF8&colid=2UODU7O88CBAM&coliid=I1A0RJNIDFBBW4