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Wholesale Guide

Mod Emissions and Leak Testing Methods — Specialist Vape Shops

Published 2026-05-08 · 5 min read · by the VapeWholesaleHub sourcing team

Most first time importers of mod ask the same five questions. This page answers them in the order they usually arrive, with the numbers we quote internally rather than round marketing claims.

Mod product overview
Reference view of the mod line prepared for wholesale evaluation.

Inspection Before Dispatch

Set the mod complaint threshold in the contract before you need it. Deciding what counts as an acceptable defect rate during a dispute is the worst possible time to negotiate it.

Where Mod Sits in the Range

Category data for mod is noisier than it looks. Promotions, weather and local competition all move weekly numbers, so read three months at a time rather than reacting to a single week.

One useful exercise: list every mod line you stock and mark the last date each one sold at full price. Anything without a recent full price sale is taking space from something that would use it better.

Reading a Mod Spec Sheet

Where possible, tie part of the mod payment to inspection against the written spec. It focuses attention on the numbers rather than on the relationship.

Pay attention to how a mod supplier responds when you ask for a tolerance they do not want to commit to. The hesitation is usually more informative than the eventual answer.

Reference specification for Mod orders
Product categoryPod system
Resistance band0.6 - 0.8 ohm
Capacity tolerance+/- 5%
Puff count methodDeclared by capacity
Master carton100 units
Carton weight10.2 kg
Shelf life24 months
Storage15-25 C, dry, away from direct light

Pricing and Margin

Margin on mod is rarely lost at the till. It is lost through dead stock, returns and emergency air freight. A slightly higher landed cost with predictable lead time usually beats the cheapest quote on the spreadsheet.

Indicative reference points for planning purposes: entry tier from USD 1.21 per unit at 2000 units, mid tier at USD 1.87, and volume tier at USD 1.31 for full container quantities. These figures move with specification, packaging and freight, so treat them as a shape rather than a quote.

Turning Mod Into Repeats

Keep the mod range tidy. A half empty shelf reads as a dying line, and customers interpret it that way faster than any signage can correct.

Staff knowledge moves mod more than any fixture. A two minute explanation of the difference between this line and the one next to it converts a browsing shopper into a repeat buyer far more reliably than a discount.

Where Demand Is Heading

The most durable mod lines over the last few years have been unglamorous and consistent. Novelty sells once; reliability sells every month.

Mod demand trend
Assortment mix observed across repeat mod orders.

Practical Checklist

Frequently Asked Questions

Can I mix strengths in one order?

In most cases yes, as long as each strength meets the minimum run length. Mixed strength cartons are popular with retailers building their first display because they show the full ladder without over committing.

What happens if my market changes its rules?

Regulations move, and packaging or documentation sometimes has to follow. We keep approved artwork files on hand so that a required change is a reprint rather than a redesign, which keeps the cost and delay down.

Can I visit the production facility?

Yes, and we encourage it for larger programmes. Visits are most useful when you already have a draft specification, because you can then check the specific processes behind the numbers you care about.

What information do you need to quote?

Target specification, approximate quantity, destination and any packaging requirement. With those four we can usually come back with a costed option the same working day rather than a request for more information.

Can you match an existing product I already sell?

Often yes, provided we can measure it properly. Send a physical sample and we will report back on what can be matched, what will differ slightly, and why. An honest gap is more useful than a vague promise.

Next Step

Send us your current mod specification even if you are not planning to move suppliers. A second read of a document you use every month is usually worth the ten minutes.

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