Short answer: the Float Mello Pro 50K has one button, and a double-click is what it is for. Double-clicking swaps the device between Eco Mode and Turbo Mode. A single press wakes the HD display. The draw itself is automatic — you do not hold the button to vape.
The Flum Float Mello Pro 50K (sold in some stores simply as the Float Mello Pro, and more recently badged Flum UT Mello Pro) is one of the few 50,000-puff disposables that ships with a real mode switch rather than a fixed output. That is genuinely useful, and it is also the single most common thing buyers search for after they open the box: what the button is actually doing.
This guide covers every control on the device — the button, the two modes, the display, the airflow ring and the charge port — and what each one changes in practice.
The button: one control, two jobs
There is exactly one button on the Mello Pro, and it does two things.
- Single press — wakes the HD display so you can read the e-liquid and battery levels.
- Double-click — toggles between Eco Mode and Turbo Mode.
What the button does not do is fire the coil. The Mello Pro is draw-activated: you inhale and it fires. If you are coming from a button-fire pod system, this is the part that trips people up — holding the button down does nothing except keep the screen lit.
Eco Mode vs Turbo Mode: what actually changes
The two modes change how hard the device drives the dual mesh coil, and that has knock-on effects on flavor, warmth and how long the device lasts.
| Eco Mode | Turbo Mode | |
|---|---|---|
| Coil temperature | Cooler | Warmer |
| Vapor density | Softer, lighter | Denser |
| Liquid consumption | Slower | Faster |
| Total puffs | This is where the 50,000 rating comes from | Noticeably fewer |
| Best for | All-day sipping, dessert and cream profiles | Short sessions, ice and menthol profiles |
The important thing to understand is that the 50,000-puff figure on the box is an Eco Mode number. Nothing is wrong with your device if you live in Turbo and run out sooner — that is the trade you made. If you want the advertised runtime, stay in Eco and switch to Turbo only when you want a heavier hit.
Flavor behaves differently in each mode too. Warmer coils push volatile top notes harder, which suits mint, menthol and the icy fruit profiles. Cooler coils hold sweeter and creamier profiles together better. If a flavor tastes thin to you, try the other mode before you write it off.
Reading the HD display
The Mello Pro’s screen shows e-liquid and battery as two separate readouts. That distinction matters more than it sounds.
On most disposables you get one bar and no way to tell which resource is running low. Here, a device that shows plenty of liquid but low battery just needs charging. A device showing full battery and near-empty liquid is genuinely near the end of its life, and no amount of charging will bring it back.
Press the button once to wake the screen; it sleeps again on its own to save power.
The airflow ring
There is an adjustable airflow ring on the base of the device. Rotating it tightens or opens the draw:
- Tighter — a restricted, mouth-to-lung draw, closer to a cigarette. Warmer vapor, more concentrated flavor.
- Opener — a looser, airier pull with more volume and a cooler mouthfeel.
Airflow and mode interact. Turbo Mode with the airflow wide open is the biggest hit the device makes; Eco Mode with a tight draw is the longest-lasting and most cigarette-like setting. Most people settle somewhere in between.
Charging: the one habit that protects flavor
Charging is USB Type-C.
The single most useful thing to know: top the device up before the battery reads empty, not after. Running a high-capacity disposable completely flat and then charging it is the usual cause of the burnt or muted taste people report in the last few thousand puffs. A coil fired on a dying battery does not vaporize cleanly, and once wicking is scorched it does not recover.
Charge it like a phone — a short top-up when it drops rather than a deep discharge — and the last stretch of the device tastes much closer to the first.
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Specs at a glance
| Spec | Float Mello Pro 50K |
|---|---|
| Rated puffs | Up to 50,000 (Eco Mode) |
| Modes | Eco / Turbo, double-click to switch |
| Coil | Dual mesh |
| Display | HD, separate e-liquid and battery readouts |
| Airflow | Adjustable ring on the base |
| Nicotine | 5% (50 mg) salt |
| Charging | USB Type-C |
| Activation | Draw-activated |
| Flavors | 18 |
Frequently asked questions
What does the button on the Float Mello Pro do?
A single press wakes the HD display. A double-click switches between Eco Mode and Turbo Mode. The button does not fire the coil — the Mello Pro is draw-activated, so you simply inhale.
How do I switch between Eco and Turbo on the Mello Pro?
Double-click the button. The display confirms which mode is active.
Which mode gives 50,000 puffs?
Eco Mode. The 50,000-puff rating is measured in Eco. Turbo draws more power and consumes e-liquid faster, so total puff count drops.
Why does my Mello Pro taste burnt near the end?
Most often because the battery was run completely flat before charging. Firing the coil on a dying battery scorches the wick, and that damage is permanent. Top the device up before the battery reads empty.
Does the Float Mello Pro have a lock function?
The Mello Pro’s button is a display and mode control. The 5-click lock people describe is a feature of the smaller Flum Mello 20K, which is fully auto-draw with no mode button.
Is the Float Mello Pro the same as the Flum UT Mello Pro?
They refer to the same 50,000-puff device. Retailers list it variously as Float Mello Pro 50K, Flum Float Mello Pro 50K and Flum UT Mello Pro — the naming has shifted with FLUM’s branding, not the hardware.
Can I use the Mello Pro while it is charging?
Let it charge. Vaping on a device mid-charge adds heat on top of heat, which is exactly the condition that degrades a coil early.
Where to find it
The Mello Pro is stocked at Zovapo across all 18 flavors, and at VapeOwls. If you are weighing it against the smaller model, we compared them directly in our Float Mello Pro vs Float Mello guide.
Nicotine is an addictive chemical. Adults 21+ only. VapeTrends360 is editorial and does not sell vape products.
