Ideal LED Bulb for PC Desk Jar Terrarium?

I've just recently made my first jar terrarium, 1 gallon with some moss, fittonia, and springtails. It sits on my computer desk with a typical desk light just above. As I'm often sitting at this desk, I need to find a light that's appropriate for both the terrarium, as well as not straining my eyes throughout the day/evening.

Until now, I had been using a 900 lumen, 2700k, 13w(60w) LED. This works well for the eyes, however I'm reading it likely won't be enough to keep the terrarium healthy/happy. I'm now trying a 1600 lumen, 5000k, 14w LED, however it is quite intense and I feel it'd be rather straining on the eyes.

I was hoping someone might have experience with this, to give recommendations for an LED bulb that is easier on the eyes, but will still be good for the terrarium. If a different light fixture would help with this, I'm also willing to purchase one that'd help better direct the light. For now I've put a piece of paper above the light, to help focus it downward towards the terrarium.

Any help is much appreciated!