Kayfun Lite clone with a twist, made my Upper Class Technology distributed by Kebo. This is one hell of a good Atomizer. Personally never tried the kayfun. Tried the Taifun though,pretty similar but this gives one heck of a warmer vape. Build quality is pretty good won't say it's the best. But from what I'm hearing the kayfun it's that great with machining too. A little bit on the expensive side but still awesome atomizer. Love it since the first vape. Get this at www.ono.com.my !