Home General Veil Bar Duo Technical/Spec Sheet

Veil Bar Duo Technical/Spec Sheet

Last updated on Sep 29, 2025

General Specifications

  • Size: 96 × 51 × 24.5 mm

  • Battery capacity: 650 mAh

  • Current: 3A discharge

  • Battery cell working voltage: 3.2–4.2V

  • Output voltage: 1.8V / 2.4V / 2.8V / 3.4V / 3.8V

  • Static current: < 10 μA

  • Charging port: Type-C

  • Loading range: ≥ 0.8 Ω

  • Screen type: LCD screen

  • Body material: Plastic shell + silicone mouthpiece + stainless steel atomization chamber liner

  • Atomizer range: Ø 14 × 45 mm, up to 2g atomizer


Operating Parameters

  • Power switch:
    Press main button 5 times within 1.5 seconds to toggle power on/off.

    • Device checks atomizer channel when powering on.

    • If no atomizer detected: L or R indicators won’t light.

    • If no docking station is connected: neither L nor R will light.

    • Screen enters standby if idle for 10 seconds.

  • Connection:
    Base connects to battery box to check the circuit.

    • When connected, L and R + gear light indicators represent active channels.
  • Shift atomizer:
    Press small button to switch atomizer channel.

    • R or L + gear indicator lights up directly.

    • If one channel has no atomizer, it cannot be selected.

  • Preheat:
    Double press or inhale twice within 0.5 seconds.

    • Preheats at constant 1.8V for 15 seconds.

    • Any button press during preheat stops process.

    • Screen shows R or L gear indicator; turns off after 10s inactivity.

  • Smoking (use):
    Draw-activated. Hold button won’t trigger vaping.

    • Screen has no prompts during inhalation.

    • Turns off if idle for 10 seconds after inhale.

  • Change voltage:
    Press main button once → shifts voltage gear.

    • Independent voltage adjustment for left and right channels.

    • Factory default = 2.8V.

    • If no atomizer installed, that channel cannot shift gears.

    • Five gears: 1.8V / 2.4V / 2.8V / 3.4V / 3.8V

    • Screen displays current gear, turns off after 10s inactivity.

  • Battery indicator:
    Any button press (off-screen state) → screen lights, shows current battery level.

    • Turns off after 10s inactivity.

Charging Parameters

  • Low battery:
    Screen shows 0 when battery < 3.2V.

  • USB charging current:
    5V / 0.5A with overvoltage protection.

    • Does not support smoking or fast charging while charging.
  • Charging:

    • Screen displays actual battery level + percentage.

    • Lightning symbol blinks during charging.

    • Gear indicators + channel indicators stay off.

    • Fully charged = screen 100%, lightning symbol steady green.

    • Unplugging charger lights up gear + channel indicators.

    • Screen brightness dims 50% after 10s to reduce glare.

    • Short press button → wakes screen; dims again after 10s.

  • Charging time: ~90 minutes

  • Charging high-voltage protection:
    5V/0.5A = normal.
    7V–28V = triggers protection, charging cut off.


Protective Features

  • Smoking timeout: Puff > 15s → screen flashes 5 times, device stops.

  • Switch memory: Gear memory supported.

  • Overload protection: PCBA with overvoltage protection.

  • Short-circuit protection: Screen flashes 4 times across entire screen.

  • No load: Screen flashes 3 times across entire screen.

  • Overload (low resistance): If resistance < 0.8 Ω → screen flashes 4 times, standby.