Vapefly Firebolt Cotton + Fused Clapton Coils | KA1 0.7Ω / Ni80 0.35Ω (EOR)

Prebuilt Fused Clapton Coils with Vapefly Firebolt Cotton

Make rebuilding quick and convenient with the Vapefly Firebolt Cotton + Prebuilt Fused Clapton Coil Kit. Each pack combines ready-made Fused Clapton coils with Vapefly Firebolt Cotton strips, giving rebuildable users the essentials needed to install and wick a fresh build without sourcing coils and cotton separately.

Choose between KA1 0.7Ω for MTL builds or Ni80 0.35Ω for lower-resistance DL builds. Both versions use a 3mm inner-diameter coil and are suitable for compatible rebuildable atomisers.

Available Options

KA1 0.7Ω – MTL Fused Clapton

The KA1 version is built from Kanthal A1 wire in a Fused Clapton configuration using a 28GA × 2 + 38GA wrap. At 0.7Ω per coil, it is designed primarily for MTL rebuildable setups where a tighter draw and higher resistance are preferred. The 3mm inner diameter makes it compatible with a wide range of MTL-oriented rebuildable atomisers.

Ni80 0.35Ω – Fused Clapton

The Ni80 version is built from Nichrome 80 wire in a Fused Clapton configuration. At 0.35Ω per coil, it is designed primarily for DL and lower-resistance rebuildable setups. When two identical 0.35Ω coils are installed in parallel in a dual-coil build, the combined resistance is approximately 0.17Ω. The 3mm inner diameter suits a wide range of DL-oriented rebuildable atomisers.

Which Version Should I Choose?

Choose the KA1 0.7Ω if you prefer a tighter, higher-resistance MTL-style rebuildable coil. This is the better option for mouth-to-lung vaping where a more restricted draw is preferred.

Choose the Ni80 0.35Ω if you prefer a lower-resistance DL or sub-ohm rebuildable coil. This version is better suited to open, direct-lung builds where more vapour production is the goal.

About Vapefly Firebolt Cotton

Each kit includes Vapefly Firebolt Cotton strips — pre-cut organic Japanese cotton with agleted shoelace-style tips that make threading the cotton through your coil faster and easier. The cotton is designed for strong e-liquid absorption and reliable wicking performance, helping you get your build up and running quickly.

Specifications

Brand: Vapefly
Coil Type: Prebuilt Fused Clapton
Inner Diameter: 3mm
Cotton: Vapefly Firebolt Organic Japanese Cotton

KA1 Option – Material: Kanthal A1
KA1 Option – Resistance: 0.7Ω per coil
KA1 Option – Wire Config: 28GA × 2 + 38GA
KA1 Option – Style: MTL

Ni80 Option – Material: Nichrome 80
Ni80 Option – Resistance: 0.35Ω per coil (approx. 0.17Ω dual)
Ni80 Option – Style: DL / Sub-Ohm

Frequently Asked Questions

What is a Fused Clapton coil?

A Fused Clapton coil is made by wrapping a thinner outer wire tightly around two or more parallel inner wires. This increases the surface area of the coil compared to a simple round-wire build, which can improve flavour and vapour production. The trade-off is a slightly slower ramp-up time compared to simpler coil types.

What is the difference between KA1 and Ni80?

KA1 (Kanthal A1) is an iron-chromium-aluminium alloy commonly used for wattage-mode vaping. It has a slightly slower ramp-up than Ni80. Ni80 (Nichrome 80) heats up faster and is also used in wattage mode. Both are suitable for regulated devices. Neither should be used in temperature control mode.

Can I use these coils in temperature control mode?

No. KA1 and Ni80 are not suitable for temperature control mode. Use these coils in wattage mode only on a suitable regulated device.

Do I need to check the resistance before vaping?

Yes. Always check the completed coil resistance on a suitable regulated device or resistance meter before use. Never fire an untested build.

Is Firebolt Cotton included?

Yes. Each pack includes Vapefly Firebolt Cotton strips alongside the prebuilt coils.

Why Buy from Coffee & Vape?

This kit is a practical option for rebuildable users who want quality prebuilt coils and cotton in one pack, without the time investment of wrapping coils from scratch. Whether you're building an MTL setup with the KA1 option or a DL rig with the Ni80 version, the Fused Clapton format delivers solid flavour and consistent performance.

Shop Vapefly Firebolt Cotton + Fused Clapton Coils online from Coffee & Vape with free delivery on orders over R950 and nationwide delivery across South Africa.

Note: This product is intended for experienced users familiar with rebuildable atomisers, coil installation, Ohm's Law and battery safety. Always verify resistance before vaping. Not for sale to persons under 18.