I use them mostly for looks 
, the noise is usually less then 200-400mv.
On this boost converter MT3608 ( ≈ 700mA) o/p, there is quite a difference:
I use them mostly for looks , the noise is usually less then 200-400mv.
On this boost converter MT3608 ( ≈ 700mA) o/p, there is quite a difference: