i need help on authentic rda

[azizcansaythis]

waddup ppl, i need your guys help a bit past 2 days im looking at zenith 2 and trident 2 rda's i cant even decide which one to get first. im looking for air flow control, flavor, dense clouds and for single coil build. have any of you guys own the 2 rda's and how is it? whats the point of dual coil? thank you adv

 

[K_Tech]

Those are both, in my opinion, very good RDAs. If you want actual control over air flow, the Zenith V2 is what you're looking for. The air flow in the Trident V2 isn't adjustable.

A single coil of any design can only vaporize so much e-liquid. Think of it this way; a one-ohm coil at 4.2 volts (using the 4.2 assuming a fully charged battery and no voltage drop or battery sag) you're going to put 4.2 amps through that coil (current = voltage/resistance), resulting in 17.64 watts of power.

Throw in another coil parallel to the first coil, your resistance is cut in half (assuming TWO one ohm coils), the current and the power are doubled (8.4 amps and 35.28 watts).

If done properly, going dual coil can increase vapor production and sometimes flavor depending on your setup.

 

[autobiogphnation]

Dual coil allows for more vapor as you have two coils that are heating up liquid. They take a extra second or so to heat up because they're in parallel because each coil is really larger in resistance than your total resistance (ie a 2 ohm dual coil build in parallel is made with two 4 ohm coils), so it's taking more current to overcome the resistance of the coil thus more drain on the battery.