Key specification for this speed controller: 205CFM, power cord length 1.5 m / 4.9 ft. Everything below is reproduced from the factory data sheet. Made by Shenzhen Mei Zhi Guangdian Limited (6 years on the platform, factory-assessed). Send your target quantity and destination for a firm quotation with current lead times.
Key Features of This Speed Controller
- Model Number: SF-4Inlinefan
- Power Cord Length: 1.5 m / 4.9 ft
- Power: 27W±5%
- Airflow: 205CFM
- Material: ABS
- Place Of Origin: Guangdong, China
Technical Specifications
| Material | ABS |
|---|---|
| Model Number | SF-4Inlinefan |
| Place Of Origin | Guangdong, China |
| Useage | – |
| Brand Name | Spider Farmer |
| Product Model | 4-inch Duct Fan with Speed Controller RJ12 Port |
| Product Series | Duct Fan(Speed Controller RJ12 Port) |
| Duct Fan Size | 30.3*20.2*19 cm / 11.99*8*7.5 inch |
| Fan Duct Size | 10.1 cm / 4 inch |
| Power Cord Length | 1.5 m / 4.9 ft |
| Airflow | 205CFM |
| Power | 27W±5% |
| Controller Type | Speed Controller |
| Recommended Tent | 60*60cm, 90*90cm, 60*120cm, 70*140cm, 70*70cm |
| Recommended LED Light | SF1000D/SF1000/G3000/SE3000/SF2000Pro/G4500/SE4500/SF2000 |
| Selling Units | Single item |
| Single Volume | 0 cm³ |
| Single Gross Weight | 0.0 kg |
Product Details
The 2025 version features a design with an RJ12 port, allowing work with GGS controllers and power strip kits. Adjustments can be made through the Spider Farmer app.












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Q2: How long does it take to deliver?
Q3: Which method of payment do you support?
Q4: What should I do if I receive a damaged or incorrect product?
service will assist you in resolving the issue.
Q5: What type of plugs do you ship?
Ordering and Pricing
- Minimum order quantity: 1 piece
- Volume pricing:
- 1–4 piece: US $50.5 / piece
- 5–19 piece: US $45.5 / piece
- 20–99 piece: US $41.5 / piece
- 100+ piece: US $40.5 / piece
- Ships from: China
- Customization: OEM and ODM accepted on qualifying volumes.
Frequently Asked Questions
What is the minimum order quantity for this speed controller?
The standard minimum order quantity is 1 piece. Trial orders can usually be arranged for buyers evaluating the product before a full production run.
Do you accept OEM or custom branding?
Yes. Custom logo, colour, packaging and specification changes are accepted on qualifying order volumes. Send your artwork and technical requirements with your enquiry.
How long does production and delivery take?
In-stock configurations typically ship within 7–15 days. Customised or large-volume orders are usually produced in 25–35 days, confirmed on order.
About the Manufacturer
This product is produced by Shenzhen Mei Zhi Guangdian Limited, based in China. The company 6 years as a verified Alibaba.com supplier, operates its own manufacturing, passed third-party supplier assessment. Browse the full Shenzhen Mei Zhi Guangdian Limited range on HVACR Nexus.
See more in EC Motors on HVACR Nexus.





















