What is the Flum UT 50K?

The Flum UT 50K, also sold as the UT Bar 50K, is a rechargeable disposable vape with two flavor tanks in one body. It holds 17mL of 5% nicotine salt e-liquid, runs dual mesh coils, and delivers up to 50,000 puffs in Eco Mode. Tap once to switch flavors. Two top buttons set the intensity of each flavor across three levels.

Why two flavors beat one

Most 50K vapes lock you into one flavor for weeks. The UT 50K lets you move from a fruit to a mint without carrying a second device. Owners and reviewers rate these combos highest:

Banana Smoothie / Strawberry: creamy on one side, bright and fruity on the other
Green Apple / Fuji Apple: sour crunch paired with sweet crispness
Blue Razz Ice / Triple Berry: cold blue raspberry next to a rich berry mix
Cool Mint / Icy Mint: a light mint and a deep freeze in the same device

Three tips from owners: alternate tanks so both flavors last the whole device. Expect about 25,000 puffs if you stay in Turbo Mode. A USB-C cable isn’t included, so keep one handy.

Which mode should you use?

Eco Mode is the daily setting. It manages power for steady flavor and the full 50,000 puff count. Turbo Mode sends more power to the coils for denser vapor and bolder flavor, at about 25,000 puffs. You can switch at any time. The 2.01 inch HD screen shows the active mode, the battery percentage, and the juice level of both tanks.

Battery and charging

The 760mAh battery charges by USB-C in about 45 to 60 minutes. In Eco Mode one charge covers a full day for most people. Heavy Turbo use means a daily top up. The screen warns you before the cell runs dry.

Specs at a glance

Puffs: up to 50,000 in Eco Mode, about 25,000 in Turbo Mode
E-liquid: 17mL total, split across two tanks
Nicotine: 5% (50mg/mL) nicotine salt
Coils: dual mesh, one per tank
Battery: 760mAh, USB-C rechargeable
Display: 2.01 inch HD screen with battery, mode, and dual tank levels
Airflow: adjustable slider
Flavor combos: 24 dual flavor pairings in stock at Vape City USA

Which flavor combo should you pick?

Choose by how you like to switch. Fruit and mint pairings such as Cool Mint / Icy Mint or Blue Razz Ice / Triple Berry give the biggest contrast. Fruit and fruit pairings such as Mango / Strawberry or Green Apple / Fuji Apple stay sweet all day. Several combos are marked down while stock lasts. If a bigger battery matters more than two flavors, compare the field in our best 50K puff vapes guide.

Order the UT 50K from Vape City USA for fast shipping. Unused devices in original packaging can be returned within 14 days. Adults 21 and over only.