eleaf buzzing?

[Tourg]

So I recently perchased an istick eleaf and I have to say it's incredible, recently I've noticed however it's making a faint buzzing noise when I fire it up. Has anyone else encountered this? It's happened whilst using my Lemo at 1.1oms and also on my nautilus mini at 1.8-9 depending on the health of my coil.
I'm sure I never noticed the buzzing noise before however it may have already existed and I just missed it!
Any advice or fixes?

 

[bussdriver]

Most mods will regulate and adjust their output by turning the output on and off. The greater the 'on' time compared to the 'off' time, the greater the power delivered. You are probably noticing this, and it is normal. It may get better or worse depending on your watt/volt setting or on your coil resistance. Happens on several of my mods.

 

[Tourg]

So it's nothing to worry about and quite frequent is what you're saying? Cheers for putting my mind at ease, thought I could be holding a bomb! Aha cheers buddy