Q.Lots of green tomatoes but not reddening
I started my tomato plant indoors but have taken it inside since temperatures here in the UK are down to 50 at night and not that warm during the day. I placed the plant in our conservatory. I have at least 50 green tomatos but none seem to be ripening. What can I do? I need to trim off some longer shoots so just did that two days ago. I have also given it tomatoe feed in its water.

These links can help you.
https://www.gardeningknowhow.com/edible/vegetables/tomato/what-make-tomatoes-turn-red.htm
https://www.gardeningknowhow.com/edible/vegetables/tomato/how-to-turn-green-tomatoes-red-how-to-store-tomatoes-in-the-fall.htm
https://www.gardeningknowhow.com/edible/vegetables/tomato/do-tomatoes-ripen-from-the-inside-out.htm