1Does Eterna also work for niches inside dimly lit chapels?
No. The lamp needs sunlight to work, as it is powered by solar panels. It uses daylight to recharge, storing up all the power it needs to work at night
2How do I install it?
To install it, simply use it to replace the traditional bulb inside the lamp holder. The spring supplied allows the lamp to adapt to all types of lamps.
3Does Eterna have a steady or flickering light?
Flickering
4What are Eterna's measurements?
103 mm X 30 mm