They are a 3 watt incandescent bulb with a realistic flame effect. Compared to the Low Blue Lights LED night light bulbs, the color temperature appears to be shifted further to red (very orange colour), and is less bright. I think it would make a good option for a night light. And the flickering effect is pretty cool too.
The only issue is that the bulb is larger than a standard night light bulb so you might need to remove the night light cover to fit the bulb in.