I don't know if the model has changed compared to those others bought, but it's not suitable for a vigil lamp.
The reason is that its light does not flicker like such devices usually do, so it doesn't simulate a candle.
On the contrary, it blinks at a steady rate like a warning light.
As a construction, it is good and its switch on the underside is ON - OFF, so it is more convenient compared to other similar products where if you remove the safety to turn it on, it only turns off again when its battery runs out.

The candle is of good quality, it works day and night. The fact is that I did not expect it to flicker, which strains the eyes, but in the final analysis it is a useful product.