Frequently Asked Questions
Who is K-Star and what is your manufacturing background?
K-Star Plastic Mold (Shenzhen) Co., Ltd. is a leading manufacturer of humidifiers and aroma diffusers, established in 1992. As a trusted OEM & ODM supplier for global brands, we operate a 25,000 m² facility in Shenzhen and have been recognized as a five-star supplier by Bosch, Epson, and Puzhen for over a decade.
What types of products do you manufacture?
We specialize in:
- Ultrasonic humidifiers
- Aroma diffusers (plastic + glass + wood styles)
- Essential oil diffusers
- Smart app-controlled diffusers
- Ambient lighting humidifiers
- Custom-designed OEM/ODM diffuser solutions
All products are produced in-house, from plastic molding to assembly and functional testing.
Do you offer OEM and ODM services?
Yes. K-Star offers full-service OEM & ODM, including:
- Industrial design
- Mold development
- Electronic engineering
- Prototyping
- Mass production
- Branding & packaging customization
We support private label projects for startups and major international brands.
What certifications do your products meet?
Our products are manufactured to comply with major global standards, including:
- CE / RoHS
- FCC
- ETL
- KC
- ISO 9001 quality management
Additional certifications can be arranged depending on your target market.
What is the minimum order quantity (MOQ)?
Our standard MOQ is:
- 1,000–2,000 units for OEM orders
- 500 units for standard models with color/logo customization
We offer flexible solutions based on model complexity and customization requests.
What is your production capacity?
With a 25,000 m² factory and multiple automatic assembly lines, K-Star can produce:
- 500,000+ aroma diffusers per month
- 300,000+ humidifiers per month
Our stable supply chain and in-house mold workshop ensure fast lead times and consistent quality.
Do you support sample orders?
Yes. We provide samples for testing and evaluation.
- Standard models: ready to ship within 3–5 days
- Customized models: sample lead time 10–15 days depending on complexity
How do you ensure product quality?
Quality control is carried out at every stage of production:
- Incoming materials inspection
- Injection molding QC
- PCB testing
- 100% functional testing of finished products
- Aging test for select models
Our commitment to quality has earned long-term partnerships with well-known global brands.
What is the normal lead time for mass production?
- Standard models: 25–30 days
- OEM/ODM customized projects: 35–45 days
Lead time may vary depending on order quantity, customization level, and seasonal demands.
