Cooling Fan, WKH, 0412LBS, 40mm, 5v

Key specification for this cooling fan: 12v, 5v, 24v, power source Electric. Everything below is reproduced from the factory data sheet. Made by Guangzhou Yuexiu District Weikeheng Electronic Firm (2 years on the platform, typical reply ≤2h). Send your target quantity and destination for a firm quotation with current lead times.

Key Features of This Cooling Fan

• Model Number: WKH 0412LBS
• Power Source: Electric
• Voltage: 12v, 5v, 24v
• Material: Plastic
• Blade Material: PBT
• Frame Material: Thermal plastic UL 94V-0

Technical Specifications

Product Details

PRODUCT HIGHLIGHTS

• Optimized Air Volume: Powerful 40mm blade design for maximum heat dissipation in compact server racks.
• Industrial Strength Cooling: Engineered to keep high-power inverters and electronic devices at peak performance.
• Silence Fan PC Tech: Whisper-quiet drive (under 24 dB-A), perfect for noise-sensitive workspace and office gear.
• Zero-Vibration Performance: Precisely balanced motor reduces mechanical noise for a stable user experience.
• Multi-Connector Ready: JST, Molex 4-Pin, and Large 4-Pin for 100% replacement compatibility in any device.
• Selectable Voltages: 12V/24V/48V options to fit global industrial power system standards.

40x40x10mm DC Fan
Model Number	WKH 0412LBS (Universal Series)
Dimensions	40 x 40 x 10 mm (4010 Size)
Rated Voltage	DC 12V / 24V / 48V (Selectable)
Rated Speed (RPM)	4500 – 5500 RPM (High Speed)
Rated Current	0.06 Amps (at 12V DC)
Power Consumption	0.72 Watts (Energy Efficient)
Max. Airflow	5.0 – 7.5 CFM (High Airflow)
Noise Level	20 – 24 dB-A (Silence Fan PC)

MODEL	Rated Voltage	Rated Current	Rated Input Power	Speed	Maximum Air Flow			Maximum Air Pressure			Noise
PART NO.	VDC	Amp	Watt	R.P.M.	m3 /min	CFM	mmH2O	IN H2O	dB-A
WKH0412LB	12	0.06	0.72	5000	0.184	6.5	3.67	0.144	18.5
WKH0424LB	24	0.05	1.2	5000	0.184	6.5	3.67	0.144	18.5
WKH0412MB	12	0.09	1.08	6000	0.23	8.12	5.12	0.202	24.5
WKH0424MB	24	0.06	1.44	6000	0.23	8.12	5.12	0.202	24.5
WKH0412HB	12	0.1	1.2	7000	0.268	9.46	6.92	0.272	28.5
WKH0424HB	24	0.08	1.92	7000	0.268	9.46	6.92	0.272	28.5
WKH0412HHB	12	0.13	1.56	8300	0.325	11.48	9.13	0.359	32
WKH0424HHB	24	0.09	2.16	8300	0.325	11.48	9.13	0.359	32
WKH0412VHB	12	0.16	1.92	9500	0.368	13	11.66	0.459	36.5
WKH0424VHB	24	0.1	2.4	9500	0.368	13	11.66	0.459	36.5
WKH0412SHB	12	0.25	3	11000	0.42	14.83	15.26	0.601	41.5
WKH0424SHB	24	0.12	2.88	11000	0.42	14.83	15.26	0.601	41.5

Application

UAV & Drone Application, Electric Forklift, LED Lighting Industry, Handheld Air Detector, Industrial Charging Machine, EV Charger,
Nebulizer, Electromagnetic Oven, Humidifier, Smart Toilet, Intelligent Range Hood, Air Purifier, Aromatherapy Machine, CPU Cooling
Fan, PC Server Case, 3D Printers, Stage Lighting, VR Equipment, AR Glasses, Intelligent Manicure Machine, Projector, High-speed
Industrial Camera, Head Mounted Display, Automotive Industry, Car GPS Navigator, Automotive LED Lamp, Cabinet Industry, Electrical
Control Cabinet, Power Industry, UPS Power Supply, Photovoltaic Equipment, Dehumidifier, Smart Air Conditioner, Portable Gas
Detector, Servo Drive, Electric Pallet Truck, Liquid Cooling Module, Industrial Cooling Blower, Outdoor LED Flood Light, Smart
Home LED Lamp, Energy Storage Cabinet, Industrial High Bay Light, Digital Projector, FPV Drone Gear, Ultrasonic Cleaner, Smart
Thermostat, Air Fryer, High-frequency Rectifier, Vehicle ADAS Module, Distribution Switchgear, Heat Exchanger, RGB Stage Light,
Battery Management System

ABOUT THE SUPPLIERWEIKEHENG is a professional manufacturer focusing on fan R&D, production and sales. We supply premium ventilation & cooling products worldwide. Equipped with advanced production facilities, we ensure bulk production and prompt delivery. Our main products include AC/DC cooling fans and blowers for industrial, commercial and electronic applications. Supported by strict quality control and sound after-sales service, we have gained wide global customer trust and steady market recognition.

Factory situation

PRODUCTION WORKFLOW

CUSTOMIZATION CAPABILITIES

Item	Custom Options
Product Name	Custom AC Axial Fan, DC Axial Cooling Fan 5020
Available Sizes	15mm,17mm,18mm,20mm,25mm,30mm,35mm,36mm,38mm,40mm,45mm,50mm,52mm,60mm,70mm,80mm,92mm,120mm,125mm,127mm,136mm,140mm,150mm,160mm,172mm,200mm,220mm,225mm,254mm,280mm
Material	Plastic Frame & Blades / Metal Frame & Metal Blades (Optional)
Bearing Type	Double Ball Bearing / Hydraulic Bearing
Working Voltage	DC: 5V,12V,24V,48V
		AC: 115V,230V,380V,480V
		EC: 115V,230V Customized
Custom Features	PWM/FG/RD, IP waterproof, high temp, low noise
Custom Parts	Logo printing, wire length, plug, fan guard
Service	OEM & ODM, sample development
Application Scenarios	Household Appliances, Industrial Machinery, Aerospace Equipment, Power Supply Equipment, Cooling System, Ventilation Devices & More

Item	Custom Specifications
Product Name	DC / AC / EC Centrifugal Blower Fan
Available Sizes	15mm,17mm,18mm,20mm,25mm,30mm,35mm,36mm,38mm,40mm,45mm,50mm,52mm,60mm,70mm,80mm,92mm,120mm,125mm,127mm,136mm,140mm,150mm,160mm,172mm,200mm,220mm,225mm,254mm,280mm custom sizes supported
Material	Galvanized metal housing; galvanized metal / plastic impeller optional
Motor Type	AC capacitor motor, DC / EC brushless outer rotor motor
Working Voltage	DC 5/12/24/48V; AC 115/230/380/480V; EC 115/230V
Custom Functions	PWM speed control, IP waterproof, custom wire & plug, laser logo
Wide Application	Split air conditioner, air curtain, industrial cooling equipment, humidifier, heater, ventilation cabinet, charging pile, medical equipment
Service	OEM ODM custom, sample drawing development

Custom Protective Cover

Custom metal wire fan safety grilles in full sizes 15mm-280mm, protective mesh compatible with all cooling fans. sizes:15/17/18/20/25/30/35/36/38/40/45/50/52/60/70/80/92/120/125/127/136/140/150/160/172/200/220/280mm

Custom Dust Cover

Custom ABS fan filter guards with removable washable foam filters, complete size range from 15mm to 280mm, high dust capture
efficiency, simple to mount and clean.

Certification

PACKAGING & SHIPPING SPECIFICATIONS

_FAQs

Who We Are

Headquartered in Guangzhou, China, we have been exporting products since 2019. Our sales coverage breaks down as follows: North America (20.50%), South Asia (12.00%), Southeast Asia (11.00%), Eastern Middle East (9.00%), Western Europe (6.00%), Eastern Europe (4.00%) and South America (4.00%). Our team consists of around 12 to 16 staff members.

Are you a factory?

Yes, we are the professional cooling fan factory. We can provide cooling fans for you directly.

Can I customize the cooling fan specifications?

Yes, we provide custom cooling fan solutions, including specifications for size, voltage, current, speed, airflow, PWM, and IP rating. Please let us know your specific functional requirements, and we will be happy to assist you.

How about the delivery time?

For in-stock products, we guarantee on-time delivery within 3-7working days. For customized products, the specific lead time isnegotiable, and we will inform you of the exact delivery scheduleupon confirmation

What about shipment?

We can arrange for express delivery services such as DHL, FedEx,UPS, TNT, and EMS, with favorable prices. Of course, customerscan also use their own express delivery accounts for transporta-tion or employ freight forwarders.

How can we build a long-term and soundbusiness relationship?

We maintain excellent quality and competitive prices to ensure ourcustomers benefit; we also have a large inventory in stock.Basedon the principle of operating with integrity, we aim to establish afavorable and long-term cooperative relationship.

Ordering and Pricing

• Minimum order quantity: 1 piece
• Volume pricing:
  • 1–499 piece: US $0.8 / piece
  • 500–9999 piece: US $0.58 / piece
  • 10000–19999 piece: US $0.32 / piece
  • 20000+ piece: US $0.27 / piece
• Ships from: China
• Customization: OEM and ODM accepted on qualifying volumes.

Frequently Asked Questions

What is the minimum order quantity for this cooling fan?

The standard minimum order quantity is 1 piece. Trial orders can usually be arranged for buyers evaluating the product before a full production run.

What warranty is provided?

The manufacturer provides a 1 Year warranty. Spare parts and technical support remain available after the warranty period.

Can the cooling fan be supplied for my local voltage?

The standard configuration is 12v, 5v, 24v. Alternative voltage and frequency builds are available when specified at the time of order.

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 Guangzhou Yuexiu District Weikeheng Electronic Firm, based in China. The company 2 years as a verified Alibaba.com supplier, Trading Company. Browse the full Guangzhou Yuexiu District Weikeheng Electronic Firm range on HVACR Nexus.

See more in Axial Flow Fans on HVACR Nexus.