Wireless Charging Blue Light Teeth Whitening Device – Strict Factory QC Inspection & Long Service Life

Many buyers worry about defective goods, short battery life and water leakage of cheap teeth whitening tools. Our wireless charging blue light teeth whitening device WY-01, WY-02 and WY-03 implement full-process quality control from raw material incoming inspection to finished product aging test. Every whitening unit undergoes dozens of professional tests before shipment, with stable durability and complete after-sales quality assurance for retail customers, dental salons and cross-border wholesale merchants.

Full Raw Material Incoming QC Standard

All raw materials for the wireless charging blue light teeth whitening device are strictly screened before mass production to eliminate defective sources:

• Silicone Tray Inspection Check softness, odorless property and elasticity of food-grade silicone, reject hard, pungent or deformed raw materials; test bristle tray fit tolerance to avoid loose assembly.
• LED Light Bead Test Detect 470nm wavelength and illumination one by one, remove beads with unstable brightness or offset wavelength to guarantee even whitening effect.
• Lithium Battery Inspection Sample test battery capacity, charge-discharge stability, screen out cells with low capacity or fast power loss.
• Plastic Shell Material Inspect ABS/PC composite raw materials for mixing impurities, color difference and crack-prone defects to ensure drop resistance.
• Circuit Board Aging Sampling Randomly test control boards for overcharge, short-circuit protection function to avoid hidden circuit faults.

Finished Product Full Performance Test Process

Each finished wireless charging blue light teeth whitening device must complete all the following inspection items before packaging:

1. IPX7 Waterproof Immersion Test

Only the whitening host is placed in 1m deep water and soaked for 30 minutes. After taking out and disassembling, no water residue inside the shell is qualified, effectively preventing daily water leakage failure.

2. 1M Height Drop Test

Complete set (host + charging box) drops on cement ground for 3 cycles, no shell crack, LED failure or touch malfunction after impact.

3. Touch Button Lifespan Test

Sampling machine continuously taps the touch key 20,000 times, the button remains sensitive without delay or failure.

4. Battery Charge-Discharge Cycle Test

Battery undergoes 300 full charge and discharge cycles, capacity retention rate ≥80%, no rapid power loss after long-term use.

5. Continuous Working Endurance Test

Full charged device runs continuously for more than 3 hours without light dimming or automatic shutdown halfway.

6. Mechanical Pull Force Test

Test the force of taking the host out and opening the charging box cover, controlled at 1-3kgf, too tight or loose products are eliminated.

Three WY Models Unified Durable Core Configuration

WY-01, WY-02 and WY-03 wireless charging blue light teeth whitening device adopt the same durable core hardware after unified QC standards, only differ in body size and weight:

No matter which model you choose, the core light source, battery and waterproof structure pass the same strict aging test, so there is no difference in service life between the three versions.

Packaging Final Inspection Before Shipment

After single unit testing, we carry out full packaging inspection to avoid damaged goods during transportation:

1. Check shell surface: no scratch, printing blur, electroplating peeling, burr or color difference defects.
2. Check all accessories: complete host, charging box, silicone tray and manual without missing parts.
3. Box inspection: outer carton without deformation, dirt and printing error, buffer cotton matched to prevent collision damage in transit.
4. Random unpack sampling for bulk orders, recheck function random 5% of each batch of goods.

Quality Assurance & Wholesale After-Sales Policy

We provide clear quality guarantee for all bulk orders of wireless charging blue light teeth whitening device:

• Mass shipment defective rate strictly controlled below 0.3% after full QC inspection.
• If mass goods have consistent quality problems caused by factory production, free replacement of defective products is supported.
• Provide complete test reports and certification documents (FDA/CE/FCC/RoHS) for after-sales dispute handling of cross-border stores.
• Professional QC team tracks each batch of production, can provide inspection photos and videos according to customer requirements.
• Long-term cooperative merchants enjoy priority re-inspection and fast replacement after-sales service.

Daily Maintenance To Extend Device Service Life

1. Clean silicone tray after each use, replace every 2-3 months to avoid aging residue corroding the host interface.
2. Do not soak the charging box in water or place it in a steam bathroom to prevent circuit short circuit.
3. Avoid dropping the device frequently; though passing 1m drop test, repeated impact will shorten battery lifespan.
4. Charge with standard 5V USB power supply, avoid overvoltage fast charger to damage protection board.
5. Keep metal objects away from the charging box during charging to prevent abnormal charging and circuit wear.