Compare the complete supplied configuration before comparing the unit price. Two quotations for a “16-inch solar fan” may cover different batteries, panels, accessories, packing and delivery terms. A useful comparison makes those differences visible and records which details are still missing.
Start with one written requirement, send the same version to each supplier and ask them to identify every deviation. This gives you a comparison that can lead to a sample decision or a revised quotation, rather than a misleading ranking by the lowest headline price.

1. Define the requirement before collecting prices
A short requirement should identify the fan format, intended use, quantity, required accessories and destination. Keep the required configuration separate from optional changes so that an optional logo or a second lighting accessory cannot silently change the price basis.
For example, a requirement for a household standing fan should specify a standing format. A wall fan offered in response may be worth considering as an alternative, but it should not occupy the same comparison line as if it were an equivalent item.
Write the requirement as a dated revision. If you later change the panel, packaging or order quantity, ask all shortlisted suppliers to requote that same revision.
2. Use a quotation comparison sheet
Copy this table into a spreadsheet. Replace every “Pending” with a documented answer or an explicit unresolved item. A blank cell is not confirmation that an item is included.
| Comparison field | Your requirement | Supplier A | Supplier B |
|---|---|---|---|
| Quotation date, reference and validity | Set date/revision | Pending | Pending |
| Supplier identity and named contact | Record company/contact | Pending | Pending |
| Exact model, format and configuration revision | Specify | Pending | Pending |
| Order quantity and price unit | Per fan, complete set or carton | Pending | Pending |
| Battery nominal V, complete-pack Ah and Wh | Same reporting basis | Pending | Pending |
| Solar panel and supplied charging equipment | Rating, connector and compatible version | Pending | Pending |
| Speeds and control features | Required functions | Pending | Pending |
| Runtime evidence | Speed, starting charge and extra loads | Pending | Pending |
| Included accessories | Item-by-item quantities | Pending | Pending |
| Product and carton dimensions | Distinguish assembled and packed | Pending | Pending |
| Units per carton, net and gross weight | State each basis | Pending | Pending |
| Branding, labels and instructions | Standard or requested changes | Pending | Pending |
| Sample and approval process | Configuration to be approved | Pending | Pending |
| Unit price, currency and exclusions | Same price basis | Pending | Pending |
| Delivery basis and named place | State what is included | Pending | Pending |
| Payment and timing | Written terms and start conditions | Pending | Pending |
| Spares and warranty responsibilities | Written scope and exclusions | Pending | Pending |
| Supporting documents | Model-matched documents needed for the order | Pending | Pending |
The sheet is an editorial comparison template. It is not a statement of Farseen's prices, payment terms, warranty or lead times.
3. Reconcile the battery and panel entries
A quotation that says only “12,000mAh battery” leaves an important comparison unresolved. Ask for the complete pack's nominal voltage, capacity reporting basis and nominal Wh. If a listing contains a second capacity in parentheses, ask what it means for the exact configuration being quoted. The Wh and mAh guide explains the calculation and the limits of ambiguous labels.
Solar panel watts are another incomplete comparison. In Farseen's current reference configurations, 198F uses a 9V 20W panel, while S600 uses an 18V 20W panel. The shared 20W rating does not mean the panels can be swapped between models or that the fans have the same charge time.
Request the supplied panel and charger version, and keep compatibility confirmation with the quotation. If runtime matters to the intended sales use, request results tied to the speed, lights, USB loads and stopping condition. A broad hour range without conditions is a specification entry, not a comparable test result.
4. Count what is inside one set
Use a line-by-line packing list. The following differences within Farseen's current range show why a generic “solar fan kit” description is insufficient:
| Reference configuration | Panel and charger | Lighting and controls |
|---|---|---|
| 198F standing fan | One 9V 20W panel and one DC charger | Two LED bulbs; remote and night light listed |
| S600 standing fan | One 18V 20W panel and one DC charger | Two LED bulbs; remote and night light listed |
| T02 table fan | One 9V 4W panel and one DC charger | Two LED bulbs and night light; no remote |
| W01 wall fan | One 9V 20W panel and one DC charger | No bulbs or remote in the standard package |
These are model references, not interchangeable bundles. Requested changes must appear separately in the written quotation and sample configuration.
Consider a fictional comparison: Supplier A quotes a complete standing-fan set with a panel, charger, remote and two bulbs. Supplier B quotes a fan and panel only. Without pricing the missing items and confirming their compatibility, B's lower headline price cannot establish which complete set costs less. No real prices or supplier offers are represented in this example.
5. Make the commercial basis comparable
Keep the currency, quantity and price unit visible next to each amount. Record the delivery basis, the named location and the specific charges included or excluded. If currencies differ, record the conversion rate and date used for your internal comparison; retain each original quoted amount.
Do not call a number a complete delivered cost when transport or destination charges remain unknown. Track unresolved costs as unresolved, then obtain the relevant written figures. Similarly, “ready in 20 days” would need a defined starting event and scope before it could be compared with another timing statement; that example is not a Farseen delivery commitment.
Separate one-time requested changes from recurring per-set items. Branding setup, requested packaging changes and sample costs should each have their own line when applicable. Avoid distributing them across units until the quantity and inclusion basis are settled.
6. Tie the sample to the quotation
Ask the supplier to identify the sample's model, battery, panel, charger, accessories and packing revision. Record any difference between the sample and the proposed production configuration. A working sample of a different battery or panel configuration does not validate the quoted combination.
Use the solar fan sample inspection checklist for normal-use checks and a clear result record. Keep document checks separate from product observations: a document should identify the relevant model and issuing party, while a sample check records what was actually supplied and observed.
7. End with a decision and a list of unresolved items
Give each quotation one practical next step:
- Ready for sample comparison: the configuration and price basis are sufficiently clear.
- Needs a revised quotation: a specific mismatch or missing cost prevents comparison.
- Does not meet the requirement: the supplier has identified a material difference you cannot accept.
Avoid a numerical supplier score that hides missing answers behind an average. A short decision note can state the preferred configuration, the evidence considered, remaining questions and the next person responsible for resolving them.
For a Farseen quotation, select the relevant models from the four-model solar fan range and send your configuration requirements. Include quantities, destination, standard or requested accessories, branding needs and the requirement revision. For the two standing models, the 198F and S600 comparison can help you decide whether one or both belong in the request.