Everything buyers actually ask.

Greenwood, Indiana — 1151 S Graham Rd. Orders placed before 2 PM ET ship same-day with adult-signature delivery. 1-3 business days to most US addresses. Free shipping over $80; extra 10% off your entire order over $150.

We are the authorized US distributor for Flum Vape — not the brand itself. The brand is Flum; we're flum-vape.com, the Greenwood IN warehouse that ships Flum devices directly to US adult buyers. We never re-package or re-label.

Every inner box has a scratch-off security code. Scratch it, scan the QR with your phone, and Flum's verification system confirms the device on the spot. We verify every batch ourselves when it arrives at our warehouse — if a security code fails, the box doesn't ship.

Both are bottle-silhouette devices in the Mello family. The Mello 20K is the volume-favorite at $23.99 — 20,000 puffs, 15 mL juice, Hybrid 2.0 Mesh Coil, HD animated screen, 33 flavors across 6 themed editions. The Float Pro 50K is the higher-puff sibling at $24.99 — 50,000 puffs, 25 mL juice, Eco/Turbo dual-mode, Smart HD color display, 13 flavors.

The UT Bar Pro 50K is the only Flum device with two simultaneous flavor chambers and instant switching. Each variation ships as a paired flavor — 'Strawnana / Gelato', 'Pink Lemonade / Mixberry', etc. You choose both tanks at checkout. Mid-session, click the device button to switch tanks.

20,000 puffs total — about 40 days at 500 puffs/day, or roughly 80 days at moderate use. The HD animated screen shows live juice + battery in segments so you'll know when to reorder.

5% salt nicotine (50 mg/mL) — the standard salt-nic concentration for adult disposables in the US.

About 45-60 minutes from empty to full via USB-C at 5V / 2A for the 20K/25K devices, 75-90 minutes for the 50K devices. Higher-wattage GaN bricks won't charge faster — the device caps draw internally. The device is usable while charging.

Yes. Mello and Float Mello Pro show juice on the HD display in segments. UT Bar Pro 50K shows juice + active-tank indicator. UT Bar Pro 25K shows battery + juice on the Smart LED screen.

Email service@flum-vape.com within 7 days of delivery with your order # and a photo. See /return-policy/ for the full policy.

No. Flum devices are closed-system disposables — refilling voids the device's safety design and we cannot warranty refilled units.

There's a button on the device. Each click toggles which tank fires next. The Mega HD screen shows the active tank. No re-prime, no airflow change — just a different flavor on the next puff.

They drain at whichever rate you puff each tank. If you favor Tank A for a whole session, Tank A drains faster. The HD screen shows each tank's remaining juice independently.

No — the UT Bar Pro 50K is designed for paired flavors and ships pre-filled. If you want a single-flavor experience, the UT Bar Pro 25K is the single-flavor sibling at $23.99.

Card-only at checkout — Visa, Mastercard, American Express, Discover. We accept these card brands via our merchant processor. We don't accept PayPal, Apple Pay, Google Pay, or crypto at this time.

At checkout. We charge at the time you place the order, not when the package ships. If we can't fulfill (rare — only happens if a flavor sells out between checkout and ship), we refund within 1-2 business days.