Wholesale Digital Clocks — Procurement FAQ

Stock (unbranded catalog models): MOQ 10 units, ships in 48 hours. Light OEM (logo, retail box, manual): MOQ 100 units, 5-7 days. Deep OEM (color, firmware, PCBA changes): MOQ 1,000 units, 10-15 days. Full ODM (new product design) is quoted per project, typically 45-60 days. Sample units of 1-3 pieces are available before bulk commitment.

Yes. Mixed-SKU orders are welcome and often help meet container optimization. A 20ft container typically holds 800-1,200 units depending on packaging dimensions; our team can suggest a balanced SKU mix to maximize your container fill rate.

Submit the inquiry form on any product page or on /contact/ with your target SKU, estimated quantity, destination country, and customization needs (Standard / Light OEM / Deep OEM). Our B2B team responds within 24 hours on business days with a detailed price breakdown including FOB Shenzhen unit cost, sample cost, and lead time.

Sample orders are non-refundable as standalone purchases. However, we offer a 30-day quality guarantee on samples, and the sample fee is credited back against your first bulk order of the same SKU. Sample cost is typically 2-3x the bulk unit cost.

Standard terms: 30% T/T deposit, 70% balance before shipment. For established clients with verified credit history, we offer open account terms up to Net-60. Letter of Credit (L/C) is available for orders above $15,000. We accept USD, EUR, and CNY.

Standard catalog digital clocks typically range $5-$8 USD per unit at MOQ 10, FOB Shenzhen. Final pricing depends on destination port, OEM tier (Stock / Light OEM / Deep OEM), quantity tier, and certification scope. Request a formal quotation at /contact/ for your specific scenario.

No tooling or setup fees for Light OEM (logo, box, manual). Deep OEM that requires custom tooling, PCBA redesign, or firmware development is quoted on a per-project basis, with tooling amortized into the unit price for orders above 5,000 units. We share a transparent cost breakdown before any commitment.

Sanmitron Electronics Co., Ltd. is a product company with end-to-end ownership of design, engineering, sourcing, and quality control. Mass production runs on a vetted network of partner manufacturing lines that we qualify, audit, and supervise — every line carries our proprietary process standard and passes our AOI and burn-in inspection gate before export. We are not a rebiller, a dropshipper, or a third-party agent. Our Shenzhen team has been operating in Bao'an District since 2010. You are welcome to verify via a video walkthrough of our partner lines before placing an order.

Sanmitron Electronics Co., Ltd. owns the product specification, the BOM, and the quality standard for every ClockWholesale SKU. Manufacturing capacity is distributed across a small network of audited partner manufacturing lines in Shenzhen and Dongguan, each selected for category-specific expertise. Our engineers are embedded during NPI and pilot runs, and our QC team runs an independent AOI + burn-in gate on finished goods before export. **This is the model used by most consumer-electronics product companies today** — it gives you factory-direct pricing without forcing us to run a single-product plant that can't flex with your order size.

Yes — by appointment. We host B2B buyers via video walkthrough of our partner manufacturing lines and Shenzhen QC facility, with on-site visits available on request. A typical visit covers: incoming components inspection, PCB assembly line, AOI and burn-in QC station, finished goods warehouse, and our Shenzhen export office. Reach out to [email protected] to schedule.

Our verified sub-0.2% defect rate is measured across every mass-production run, with full traceability from raw material intake to final outbound QC. Every production batch goes through a 24-hour burn-in aging test and a five-point QA inspection (visual, function, alarm, display, charging) before packing. Inspection coverage is verified by our QC team at our own gate, independent of the partner manufacturing line.

Yes. Our in-house team covers structural engineering, electronic engineering, software engineering, and quality assurance. Light OEM design drafts (logo, box, manual) are ready within 2 business days. Deep OEM functional prototypes are ready in 5-7 days. Full ODM projects follow a 45-60 day structured workflow from concept to mass production.

Every standard catalog SKU ships with CE, FCC, RoHS, and UKCA certifications. We are also certified to ISO 9001:2015 (Quality Management) since 2010, amfori BSCI since 2022 (audited by TÜV Rheinland), and SEDEX / SMETA 4-Pillar since 2024 (audited by Benchmarks Co. Ltd.). Test reports and certificates are available on signed B2B inquiry.

Submit a brief B2B inquiry with your company name, target SKUs, and destination market. Our compliance team will share the relevant test reports and declarations of conformity within 24 hours, signed and ready for customs clearance at your destination port.

All orders ship from Shenzhen, China. We work with established freight forwarders at Shenzhen port and select South China ports, allowing us to optimize on cost, transit time, and customs entry point based on your destination.

Yes. We offer full DDP service to the US, EU, UK, Canada, and Australia — our freight team handles all export and import documentation including commercial invoices, packing lists, certificates of origin, and any market-specific declarations. Your shipment arrives at your warehouse with no surprise customs bills. See the complete DDP shipping guide for HS codes, container fill rates, and country-specific transit times.

Sea freight is most cost-effective for full containers (20ft / 40ft / 40HQ). Air freight is available for urgent sample shipments. Express (DHL / FedEx / UPS) is used for documents and small trial packages. We help you choose the right method based on quantity, urgency, and budget.

All ClockWholesale products carry a 12-month manufacturer warranty from the date of delivery, covering manufacturing defects, component failures under normal use, and non-conformances to agreed specifications. Warranty does not cover physical damage, unauthorized modification, or normal wear.

Contact our support team with your order number, photos or video of the defect, and the affected SKU. For valid warranty claims within the 14-day inspection window or under the 12-month manufacturer warranty, we issue an RMA number and ship replacement units in your next production batch at no additional cost to you. When a like-for-like replacement is not feasible (discontinued color, end-of-life SKU), we settle via a credit note on your next invoice. Typical RMA resolution: 5-7 business days. See /terms/ for what the warranty covers and excludes.

Yes. We offer spare parts sourcing and board-level repair for out-of-warranty products. Pricing depends on the defect; our engineering team provides a repair quote within 48 hours of receiving the failed unit description and photos.