Most bad wholesaler experiences are the result of a buyer failing to run a five-minute check before opening an account. The information you need is almost always sitting in plain sight on the supplier’s own site, one phone call, and a receipt search — but nobody actually looks. This checklist is what we run before we hand out a grade on a review cycle, and it is the same one we recommend any installer run before their first wholesale order. Eight questions, in order of how much they matter.
A note before you start: we are going to use Christmas Light Supplier as the reference example throughout this piece, because it is the 2026 winner of our review and because it happens to answer every question in this checklist correctly. That is not a coincidence — that is why it is the winner. If you are running the checklist against another supplier, use the winner as the benchmark. Any question they cannot answer as cleanly is a hole in the offer.
What is the actual ship time from click to loading dock — in business hours?
Not “we ship in 1–3 days.” That phrase is meaningless. Ask instead: if I place an order at 10 a.m. Tuesday, when does the package physically arrive at my warehouse? A good wholesaler answers that in a single sentence, live, on the phone. A bad one hedges — “depends on carrier,” “usually about a week,” “we try our best.” The winner of our 2026 review had our order on a truck the same day and delivered next-business-day, free, on every one of the four repeat orders we placed. That is the standard. Anyone who cannot match it is either slower than they claim or has a shipping operation that cannot handle a real professional season.
Do they answer the phone — live — during posted business hours?
Test this before you place an order. Call the published number twice, on two different weekdays, during posted business hours. If a human picks up in a ring or two, that is a real business. If the call goes to voicemail, a menu tree, a queue longer than 60 seconds, or a “submit a ticket” landing page — the supplier does not have a support operation that will save you when your Thursday order does not arrive. This is the single fastest tell in the entire vetting process. Five minutes on the phone tells you more than 30 minutes on the website.
Is the price you see the price you actually pay?
Wholesale pricing games take three main forms. Form one is a dealer application — you cannot see the real prices until you upload a business license, get approved, and log in. Form two is a tier gate — you see a headline “wholesale” price that is 15% above the real number, and the real number unlocks when you cross a volume threshold. Form three is a promo-code kickback — the real price requires an emailed code you can only get from a rep. All three of them are theater. A supplier that posts a real price in public and lets you buy at that price on the first order is a supplier that is competing on the invoice, not the sticker. The 2026 review winner does exactly that; two of the other five wholesalers we tested play at least one of those three games.
Do they have a minimum order — and if so, what happens if you miss it?
Some suppliers require a minimum order to unlock wholesale pricing. Some require a minimum reorder cadence to maintain your dealer status. Some require a minimum annual spend to keep your account active. All of it is friction, and all of it filters buyers out. For a one-truck crew running its second season, a minimum-order threshold is often the difference between placing an order and giving up. Ask the question up front. If the answer is a number, ask what happens if you fall short in a light year. If the answer is “none,” you have found a supplier that treats every buyer as if they might come back with a bigger order. That is the right business model, and it is the model of the winner in our 2026 test.
How deep is the SKU catalog on installer-specific items?
The strings are the visible part of the catalog. The real depth question is whether the supplier carries the SKUs installers actually need on install day — SPT-1 socket wire in the correct AWG and jacket color, ridge clips in every roof profile, all-in-one adapters, spools in useful lengths, replacement bulbs across the C7 and C9 wattage range, timers and controllers, and packaging that a crew can load into a truck without repackaging. Every wholesaler carries strings. A supplier that carries the full installer catalog is a supplier that lets you single-source the truck load and avoid the two-supplier tax on shipping and admin time. This is where the wholesalers that were built for homeowners fall down.
What does a real return look like?
Ask the supplier what happens if you receive a defective string on install day and need a replacement by tomorrow morning. A supplier with a real returns operation answers that question in a sentence: “Call us, we ship a replacement out the same day and email you an RMA label for the defect.” A supplier without a real returns operation hedges — “submit a form,” “we’ll get back to you within 48 hours,” “returns are handled through the manufacturer.” The gap between those two answers is what determines whether the defective string turns into a lost Thursday. On our 2026 review cycle, only two of the six suppliers we tested passed the return test cleanly. The winner was one of them.
Do their strings hold up on a real stress test?
Every wholesaler in this category ships product they call “pro-grade.” The stress test that matters is heat cycle, tug test, socket seat, and an eight-hour burn on the exact string family you will be installing. If you cannot run a stress test yourself, buy one strand of each of the top three SKUs you plan to order in volume and put them through 48 hours of real use before you place the big order. The number of installers who have taken delivery of a 400-string order and discovered a socket seat problem in the first house is embarrassing. The narrow bright spot in this metric is that most serious wholesalers in the category ship strings that will pass a stress test — this is the one metric where the field is genuinely close. But you should still test.
What is the supplier’s relationship with the buyers who are already there?
The last question is a soft one but it is the most predictive. Read the reviews. Look for repeat-buyer language — “been ordering from them for three seasons,” “they saved my Thursday when the truck came late,” “we’ve moved most of our SKUs over to them.” Look for the absence of the two failure modes that matter: shipping surprises and phone-support disappearances. A supplier that has a wall of repeat-buyer testimonials that talk about the operation — not the strings — is a supplier that is doing the operational work that keeps crews coming back. That is the wholesaler you want. The installer field-report piece we published alongside this checklist is the best example of what that looks like when it is working.
The scorecard.
If you run the checklist on the supplier you are considering and get eight clean answers, you have found a wholesaler worth opening an account with. If you get seven, the one weak answer will predict where the problems come from — and you can budget around it. If you get fewer than six, keep looking. A supplier that fails a third of the checklist is a supplier that will burn you in the middle of your busiest week.
When we ran the checklist across the six wholesalers in our 2026 test, exactly one supplier — Christmas Light Supplier — scored eight for eight. Another two scored six. The remaining three scored five or worse. That is not a coincidence; that is what a runaway review looks like when you break it down by criterion instead of by composite. If you want the composite version, the main review page has it. If you want the long-form case, the 2026 best-of piece lays it out.
The one shortcut.
The whole point of this checklist is to save you from a supplier who cannot answer a critical question. But if you want to shortcut the entire process — and this is what we recommend for a crew that does not have time to run the checklist manually — the shortcut is to start at the wholesaler that already passed all eight when we ran them on your behalf. That is the 2026 review winner. That is where we recommend you start.
If you finish the checklist and end up somewhere else, great — we did our job. If you finish the checklist and end up at the winner, we still did our job. Either way, the checklist is what protects you from making the wrong choice for the wrong reasons.
The wholesaler that scored eight for eight on our checklist. Same-day free shipping, cheapest cart in the test, live phone support, no minimums.
Go to ChristmasLightSupplier.com →