FREEMAX Fireluke 4 Sub-Ohm Tank Review
The FREEMAX Fireluke 4 Sub-Ohm Tank is a 5ml top-fill tank with a child-resistant slide-open top cap, adjustable airflow and an 810 drip tip. It takes FreeMax X, TX and 904L X mesh coils, and comes with an X1-D Mesh 0.15Ω coil fitted and a spare 904L X2 0.2Ω. See more from FreeMax or compare other sub-ohm tanks.
Fireluke 4 Highlights
Child-Resistant Top Fill
Lift the top cap and slide it open from the red mark to fill. FreeMax says it’s ISO 8317 child-resistant certified.
Double-D Mesh Coil
The X1-D coil uses FreeMax’s FM COILTECH5.0 Double-D mesh, which FreeMax says improves flavor and heating speed by 50%.
Three Coil Series
It takes FreeMax X, TX and 904L X mesh coils, which screw into the 510 base.
Comes Apart to Clean
FreeMax says every part of the tank detaches for cleaning.
Fireluke 4 Specs
Tank
- Capacity: 5ml
- Size: 28 × 50.5mm
- Fill: top fill, slide-open child-resistant cap (ISO 8317)
- Airflow: adjustable, slots in the base
- Coils: FreeMax X, TX and 904L X mesh coils, screw-in
- Drip tip: 810
- Connection: 510
- Weight: 59g
Fireluke 4 Colors
- Options: Black, Blue, Silver, Stainless Steel
Fireluke 4 Coils and Wattage
Here are the coils we sell for the Fireluke 4 and their ratings:
| Coil | Rating | In the box |
|---|---|---|
| X1-D Mesh 0.15Ω | 40–80W, best 80W* | fitted |
| 904L X1 0.15Ω | 40–80W, best 70W | |
| 904L X2 0.2Ω | 40–80W, best 70W | spare |
| 904L X2 0.5Ω | 20–50W, best 45W | |
| 904L X3 0.15Ω | 50–90W, best 80W | |
| 904L X4 0.15Ω | 40–80W, best 70W |
FreeMax rates the 904L X coils, which it lists for the Fireluke 4; *it gives no rating for the X1-D, so that one is what major retailers list. The tank also takes FreeMax X coils and TX coils.
How to Set Up the Fireluke 4
- Check the coil: the X1-D comes fitted. To change it, unscrew the 510 base, unscrew the coil and screw in a new one.
- Fill it: pull up the top cap’s child-resistant lock, slide it open from the red mark, fill, then slide it back to lock.
- Let it soak: wait at least 5 minutes after filling a new coil.
- Set it up: screw it onto a 510 mod, adjust the airflow and start at the low end of the coil’s rating.
Who the Fireluke 4 Is For
The FREEMAX Fireluke 4 suits sub-ohm vapers who want a 5ml mesh-coil tank with plenty of coil choices. For a 4ml tank that takes dotCoils, see the dotTank Max V2.
Good to know: It’s 28mm wide, so it overhangs narrower mods.
What’s in the Fireluke 4 Box
- Fireluke 4 tank with an X1-D Mesh 0.15Ω coil fitted
- 904L X2 Mesh 0.2Ω coil
- Spare glass tube
- Extra silicone ring
- User manual



