Question about Philips Hue Outdoor Lightstrip

BT stands for Bluetooth, which means that this product can also be controlled in this way directly from the mobile phone, without further hardware such as a Hue Bridge (which can of course also be used).

I don't think there is any reason to buy the non-BT version.

Hm, it could be that it is simply the older product for which the price was no longer adjusted. Otherwise, it doesn't make sense to charge more for it from my point of view.