To the thieves who just stole the lights from my bike there's something you need to know about the contents of the saddle bag you also stole.
The bag is worth a tenner new, that bag has been through two winters. It is far from new.
The rear light was part of a set from a 99p shop.
The puncture repair kit cost 99p and needs refilling with everything. The tyre levers are lethal, if you aren't careful they become sprung- loaded eye-gougers with the slightest amount of beefy use.
The inner two inner-tubes cost £1.98 each. They ain't great but they should get you home. Not sure how well they'll work on your Sports Direct BSO.
The multi-spanner thing in the bag is terrible. It came with a Raliegh MTB I bought when I was 14. If you get any use out of it you must have greater mechanical sympathy than I do.
Those two silver canisters in the saddle bag might look like the nitrous-oxide 'laughing gas' you do with your mates but they are in fact Co2. Huff them and you will die.