To make the ring glow so you can observe the progress of a nighttime feeding session, you need to charge it first:
Take the ring off the bottle and leave it to charge by indoor light or daylight for about one hour.
If you need to boost the glow-in-the-dark ring at night quickly, place it under a bright light (for example, a table lamp) for about a minute, and it will glow again.
Make sure that the feeding teat is fully pulled through the screw ring.
Place the glow-in-the-dark ring on the bottle before you assemble the screw ring and teat.
Align the sides of the glow-in-the-dark ring with the scales on the bottle by rotating it to make the scales visible.
The Philips Avent Natural Response Nighttime bottle can also be used without the glow-in-the-dark ring.
The glow-in-the-dark ring is compatible with all Philips Avent Natural bottles, except glass bottles and PPSU bottles.
The information on this page applies to the following models:SCY903/81 .