Since my Instagram account is dedicated to cocktails, lighting for night shots is very important. So I got this portable light for my iPhone X. Advantages: It works with any smartphone, can be charged via USB and emits an even light. Cons: It's unreliable. Even if I charge it before I go outside, it runs out of juice when I want to use it. Sometimes it won't turn off either, so it dies too. The lowest setting is still too bright. I end up either trying to find some white cloth to diffuse the light or to keep the light out. But if you just want something for portraits and don't want to use flash, this works great.