Seems a good price for these strips, RRP of £79.99 and normally around the £60 mark. These are first generation, so are not extendable but you can connect multiple ones using separate power supplies. You you will need a Hue hub to control them. If 2m is too long, you can cut these shorter.
Philips Hue First Generation 2m LightStrips Smart Lighting Kit - £41.57 @ Amazon