How to Identify Your S.T. Dupont Lighter Model
Not sure which S.T. Dupont lighter you’re holding? Whether you just received one as a gift, inherited it from a family member, or found it tucked away in a drawer, it’s not always easy to tell which model you have. This guide was created to help you identify your S.T. Dupont lighter by showing key features, measurements, and model-specific details—all with side-by-side photos to make the process simple.
Need to refill your lighter but not sure which butane to use? Follow our S.T. Dupont Lighter Refill Guide.
Identifying Line 1 Lighters
Standard / Small
- ~59.6 x 35.6 x 13.5mm / ~47.7 x 35.6 x 13.5mm
- Single Gas Refill Cover on the Bottom
- Ligne 1 BS - Shut off Valve Under The Lid - Flame Can Not Be Adjusted
- Ligne 1 BR - Flame Adjustment Wheel Located Under Lid
Identifying New Line 1 Lighters
- 51 x 37 x 12mm
- Flip-open lid with cap-spring mechanism
- Covered refill port and adjustment knob on the bottom of the lighter
- Traditional flint ignition
- Dual Flame Ignition
Identifying Line 2 Lighters
Standard / Small
- ~62 x 37 x 11 mm / ~56 x 32 x 10mm
- Flip-open lid with cap-spring mechanism
- Covered refill port and adjustment knob on the bottom of the lighter
- Traditional flint ignition
Identifying Le Grand Lighters
- Typical Size: ~ 66 x 39 x 14
- Flame Type: Dual ignition (soft flame + torch flame)
- Old Generation Lighters - Refill port and adjustment screw hidden beneath bottom flap
- New Le Grand (Cling) Models - Covered refill valve and adjustment screw on bottom
Identifying Gatsby Lighters
- ~55.5 x 37.5 x 11 mm
- Flame Type: Single or Double soft flame
- Bottom Features: Covered gas refill port &
- Flame adjustment screw
- Double Godron Pattern
Identifying Line D Lighters
- ~57 x 31 x 11 mm
- Flame Type: Single soft flame
- Bottom Features:
- Covered gas refill port
- Flame adjustment screw
- Angled Flame
Identifying D-Light Lighters
- ~37 x 66 x 8 mm
- Single soft flame
- Ultra-thin rectangular body with smooth, minimalist lines.
- Top-mounted roller positioned above the flame port.
Identifying Defi Jet Lighters
- ~45 x 68 x 15 mm
- Rectangular Shape with Black Bumpers
- Side Trigger
- Covered Jet Flame
- Fuel Viewing Window
- ~ 45 x 72 x 17mm
- Rectangular Shape with Black Bumpers
- Side Trigger
- Covered Jet Flame
- Fuel Viewing Window
Identifying Megajet Lighters
- ~ 73 × 40 × 16 mm
- Tall, rounded cushion-style body
- Side Trigger
- Uncovered Extra-Wide Flat Jet Flame Mechanism
Identifying Maxijet Lighters
- ~ 65 × 37 × 13 mm
- Taller, rounded cushion-style body
- Side Trigger
- Covered Single Jet Flame Mechanism
Identifying Minijet Lighters
- ~ 55 × 33 × 12 mm
- Small, rounded cushion-style body
- Side Trigger
- Uncovered Single Flame Mechanism On Newer Models / Covered Mechanism On Older Models
Identifying Slim 7 Lighters
- ~ 65 × 37 × 7 mm
- Super Slim Rectangular Shape
- Side Trigger
- Uncovered Flat Jet Flame
Identifying Slimmy Lighters
- ~ 67 × 37 × 9 mm
- Super Slim Rectangular Shape
- Side Trigger
- Uncovered Flat Jet Flame
Identifying Biggy Lighters
- ~ 73 × 40 × 16 mm
- Super Slim Rectangular Shape
- Side Trigger
- Extra-wide Flat Jet flame
Identifying Twiggy Lighters
- ~95 x 25 x 9.6mm
- Tall Thin Rectangular Shape
- Side Trigger
- Uncovered Flat Jet Flame
Each model above links to a more detailed guide. If you need additional confirmation, click through to see full specifications, photos, and identifying features.