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Air Bar Stark 4: Quality Control Process for Distributors
Published 2026 · VapeWholesaleHub trade desk
Quality control is where a Stark 4 order either protects or damages downstream relationships.
Distributors reviewing their Stark 4 range usually find that quality control process explains most of the variance in results between accounts.
In practice the decision comes down to three numbers: unit cost, freight per unit and the realistic sell through rate for Stark 4.
Why quality control process matters on the Stark 4
Incoming inspection sampling catches most issues before they reach shops.
Documentation is not paperwork for its own sake; on quality control process it is the difference between a clean clearance and a delayed one.
Functional testing of a sample from each batch is standard practice.
Reference specification
| Item | Value |
|---|---|
| Model | Stark 4 |
| Brand | Air Bar |
| Category | Pricing |
| Battery | 1000 mAh |
| Output range | 5-25 W |
| Capacity | 6.0 ml |
| Charging | USB-C 1A |
| Coil options | 1.0 / 1.2 ohm |
| Carton quantity | 50 units |
Documented defect rates make supplier conversations objective.
Practical notes for buyers
Consistency across batches matters more than peak performance for Stark 4, and quality control process is where inconsistency first appears.
Where two suppliers look identical on price, quality control process is usually the variable that separates them over a full year.
Checklist
- Check carton quantities against the commercial invoice line by line.
- Review the reorder point after one full selling cycle.
- Verify that artwork matches the approved compliance template.
- Agree in advance who pays for return freight on a defect claim.
- Log sell through by account for the first eight weeks.
- Record the arrival condition with photographs on the day of delivery.
Commercial terms
Lead times are a function of component availability as much as factory capacity, so buffers should reflect both.
Lead times are a function of component availability as much as factory capacity, so buffers should reflect both.
| Volume tier | Indicative unit level | Lead time |
|---|---|---|
| Carton (65 units) | Tier 1 | 21-30 days |
| Pallet (1540 units) | Tier 2 | 21-30 days |
| Container (15350 units) | Tier 3 | 21-30 days |
Frequently asked questions
What defect rate is acceptable for Stark 4?
Industry practice works to a low single digit per thousand, with dead on arrival units replaced.
Can several models be mixed in one shipment?
Yes, mixing models and flavours within a carton or pallet is common and usually helps first time buyers test demand.
What happens if a batch fails inspection?
The agreed procedure normally covers replacement of affected units or credit against the next order, documented before shipment.
Do you support long term supply agreements?
Yes, rolling agreements with defined review points work better for both sides than rigid annual commitments.
Final word
A short quarterly review of these points will keep the Stark 4 range healthy without consuming the week.
Trade enquiry
Quotations, samples and artwork files are available on request. Please state model, quantity per SKU, destination and target delivery window.
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