What lighting to buy?

[CatZombie]

Hello,
I'm sorry if this is already a topic.
I have a 3 year old marginated tort called Clive and I need help with choosing lighting.
For the first two years I used a heat light with a separate UV tube bulb light. This worked great but I was then told that those kind of UV bulbs don't emit UV anymore after about 6 months...
I then decided to get one bulb that provided UV and heat because it sounded like the cheaper option.
Firstly I got one from Arcadia, this lasted almost 2 months. I then tried the Exo Terra PT2054 Glow Light/ Reflector, this lasted a month.
I'm just wondering whether there's a good option which is more reliable, or is spending £25 every month or two on a new bulb something which has to be done?
Thank you for your help! (:

I should add, I do have an outdoor run which my tortoise is currently outside in enjoying the sun.