Overview
The Cartisan Veil Bar Duo answers a question every multi-cartridge user has asked: why can't I just switch between carts without unscrewing anything? Load two cartridges, click a button to toggle between them, and never fumble with threading again.
What We Tested
Our hands-on testing methodology
Unit Tested
Veil Bar Duo (Obsidian)
Testing Period
9 days of use
Voltages Tested
1.8V to 3.8V range
Cartridges Tested
6 different carts
Battery Life
650mAh capacity
Features Tested
Dual cart, water pipe adapter
At $29, the Veil Bar Duo packs an LCD display, five voltage settings, preheat mode, and even a 14mm water pipe adapter in the box. That's a lot of functionality for a device that fits in your palm.
Design & Build Quality
The Veil Bar Duo looks like a chunky disposable vape, which is intentional. The soft-touch finish feels good in hand, and at 136g it has enough weight to feel substantial without being heavy.
Dual Cartridge System
The defining feature is obvious: two 510-threaded ports on top, each accepting cartridges up to 2G. Your carts sit side by side, protected within recessed wells that prevent them from getting knocked around.
The side button toggles which cartridge is active. A quick press switches between Cart 1 and Cart 2, and the LCD display confirms which one is selected. It's simple and it works.
LCD Display
The full-color LCD shows everything you need at a glance:
- Active cartridge indicator (1 or 2)
- Current voltage setting
- Battery percentage
The display is bright and readable, even outdoors. Information updates in real-time as you toggle settings or switch cartridges.
Form Factor
At 3.75" x 2" x 1", the Veil Bar Duo is compact enough for a pocket but chunky enough that you'll notice it's there. The soft-touch coating resists fingerprints and provides good grip. The overall aesthetic is discreet—it looks more like a tech gadget than obvious vape gear.
Features
Five Voltage Settings (1.8V - 3.8V)
The Veil Bar Duo offers five power levels:
- 1.8V - Ultra-low for thin oils and maximum flavor
- 2.2V - Low with excellent terpene preservation
- 2.6V - Balanced everyday setting
- 3.2V - Increased vapor production
- 3.8V - Maximum power for thick distillates
This range covers virtually any cartridge type. The 1.8V floor is particularly useful for live resin carts that taste best at low temperatures.
Preheat Function
Double-click to activate preheat mode, which gently warms your cartridge for better oil flow. Useful for thick concentrates or cold weather when oil viscosity increases.
Inhale Activation
The Veil Bar Duo is inhale-activated only—there's no manual fire button. The draw sensor is responsive and consistent, activating reliably without false triggers. Some users prefer button activation for more control, but the auto-draw works well here.
Water Pipe Adapter
Cartisan includes a 14mm water pipe adapter in the box. This lets you connect the Veil Bar Duo to compatible glass pieces for filtered, cooled vapor. It's a thoughtful inclusion that adds value without adding cost.
Performance
Vapor Quality
Across six different cartridges (ranging from thin CBD oils to thick THC distillates), the Veil Bar Duo delivered consistent performance. The five voltage settings provide enough range to optimize for any oil viscosity.
At lower voltages, flavor comes through clearly with smooth, cool vapor. Cranking up to 3.8V produces denser clouds with reduced flavor—standard tradeoffs that apply to any variable voltage battery.
The Dual Cart Experience
The real selling point is the convenience of switching cartridges. In practice, this is genuinely useful:
- Day/Night rotation: Keep a sativa for daytime and indica for evening
- CBD/THC combo: Alternate between therapeutic and recreational
- Flavor variety: Switch strains without commitment
- Sharing: Each person gets their own cartridge
The toggle is instant. Press the button, see the display update, take a draw. No threading, no waiting.
Battery Life
The 650mAh battery is adequate but not exceptional. With two cartridges in rotation, expect to charge daily with moderate use. The battery has to power whichever cartridge you select, so capacity per cart is the same as any 650mAh single-cart battery—you're just splitting usage across two.
USB-C charging is fast, typically reaching full in under an hour.
Who Should Buy This
The Veil Bar Duo makes sense if you:
- Rotate between multiple cartridges and want instant switching
- Value convenience over absolute minimalism
- Want an LCD display at a budget-friendly price
- Use a water pipe and want a compatible battery
Skip it if you:
- Prefer button-activated firing for precise control
- Only use one cartridge at a time
- Need maximum portability (pen batteries are slimmer)
The Bottom Line
The Cartisan Veil Bar Duo delivers on its promise: two cartridges, one device, instant switching. The LCD display and five voltage settings add functionality that justifies the slightly larger form factor, and the included water pipe adapter is a genuine bonus.
At $29, it's priced competitively with single-cartridge batteries that offer fewer features. For anyone who regularly switches between cartridges, the Veil Bar Duo eliminates a small but real friction point in daily use. That's worth something.
Looking for more Cartisan products? Visit our Cartisan brand page for the full lineup.