You asked

Is the fujifilm x e2 good in low light?

Here is what the site says about that.

From Fujifilm X-E2: Fujifilm X-E2: A mirrorless camera by Fujifilm with a 16.3-megapixel APS-C sensor, announced in 2013. Specs - Maker: Fujifilm - Mount: Fujifilm X - Sensor: APS-C, 23.5 x 15.6mm, crop factor 1.5 - Resolution: 16.3 megapixels - Stabilisation: none in the body; use stabilised lenses for slow shutter speeds - Announced: 2013 - Type: mirrorless camera Focal lengths on it Lenses frame like 1.5 times their focal length on full frame: 16mm ...

From Sensor sizes: Is full frame worth it?: For low light, events, and portraits with very shallow depth of field, yes. For travel, street, wildlife on a budget, and most hobby photography, a good APS-C camera with good lenses is enough, and you'll carry it more. Lenses and light matter more than the last stop of sensor performance.

Quoted from this site's pages.

From these pages