Nice bulb! Welcome to LG!
Thanks
This is a cold cathode fluorescent lamp, as the tube size is too small to include a thermionic electrodes (The tube looks like T0.5-T1 to me).
I almost thought that this is a LED filament lamp.
Thanks for the info, the seller and company it's branded as sells it as a CFL however seeing somewhere else said it was a CCFL did make me wonder as I have some straight CCFL tubes that are around the same diameter. I didn't know the technical side though.