SPECIFICATIONS
| Series | DN70 series |
| Item Codes | DN70351 | DN70351S |
| Description | 500W Fan Dimmer / Rotary Fan Speed Controller |
| Control Type | Rotary step‑type electronic fan speed controller |
| Load Capacity | 500W |
| Front Panel Options | PC / Tempered Glass / Brushed Aluminum |
| Base | PC |
| Middle Plate Options | Steel / Plastic‑wrapped steel |
| Standard | IEC Standard (British standard countries) |
| Warranty | 12 Years |
| Available Colors | White / Gold / Gray / Black |
| Dimensions | H 88mm × W 86mm |
| MOQ | 20GP container |
| Packaging | 1 pc per plastic bag | 8 pcs per inner box | 80 pcs per outer carton |
Fan Dimmer vs Light Dimmer — Don’t Confuse the Two
| Feature | DN70351/DN70351S Fan Dimmer | Light Dimmer Switch |
|---|---|---|
| Designed For | Inductive motor loads — ceiling fans, wall fans | Resistive or LED lighting loads |
| Internal Mechanism | Electronic step‑type motor speed regulation | Phase‑cut or PWM light dimming |
| Interchangeable? | No — using a light dimmer on a fan can damage both | No — using a fan dimmer on lights won’t work correctly |
| Noise | Silent electronic operation at all speeds | Silent when compatible with load |
| Best For | Bedrooms, living rooms, covered outdoor areas | Living rooms, dining rooms, bedrooms |
DN70 Series Panel Materials — PC, Tempered Glass, or Brushed Aluminum
| Material | Finish | Best For |
|---|---|---|
| PC | High‑transparency, high‑strength | Cost‑effective volume builds — residential and commercial |
| Tempered Glass | Glossy, fingerprint‑resistant | Premium hotel suites, luxury residential, high‑end interiors |
| Brushed Aluminum | Metallic industrial aesthetic | Modern commercial interiors, contemporary workspaces |
500W Fan Dimmer — DN70 Series Slim Rotary Fan Speed Controller, Three Premium Panel Finishes
The DN70351/DN70351S is a British standard slim 500W fan dimmer that replaces outdated resistive fan controllers and bulky surface-mount units with a modern, flush-fitting 88x86mm DN70 series wall plate. This rotary fan speed controller uses electronic step-type regulation that smoothly adjusts ceiling fan or wall fan speed through multiple positions — from off through low to maximum speed — without the humming, buzzing, or heat generation of old wire-wound regulators. The rotary knob provides tactile, precise control with a positive click at each speed position. The 500W load capacity covers the vast majority of domestic ceiling fans, wall fans, and ventilation fans. Available in three premium DN70 series front panel finishes — PC for cost-effective volume builds, tempered glass for a glossy fingerprint-resistant luxury finish, or brushed aluminum for a metallic industrial aesthetic. Two middle plate options — steel or plastic-wrapped steel — let you balance rigidity and cost. IEC standard certified for British standard countries with a 12-year warranty.
Being a factory-direct supplier, we are offering wholesale pricing along with OEM branding on numerous panel materials (besides a 12-year guarantee for the entire DN70 series range).
Electronic Step‑Type Regulation — Silent, Efficient, Modern
This slim controller for fan speed utilizes step-type electronic regulation which is an upgrade from the previous resistive fan controllers which used to waste power in the form of heat and could generate hums or buzzing noises at low speeds. Each position of the controller corresponds with one speed of the fan and the fan operates electronically without any noise while changing from Off speed through Low, Medium and up to Temp and running at every stage. The electronic regulation is very efficient at every speed. Both plastic or steel covered in plastic design provides more stability to the slim panel of 88 mm x 86 mm during its usage eliminating the flex of cheap regulators during their long operation. The design of the fan already has been approved by the international standard IEC.
Matching the DN70 Series — Fan Dimmer in the Same Slim Aesthetic
The DN70 series includes this dimmer for PC fans, which has the same slim dimensions of 88×86mm in addition to the same 3 premium finishes that DN70 light switches, plugs, and connectors have. DN70351/DN70351S dimmer can be installed in the living room or bedroom alongside DN70 light switches and DN70 sockets as all these products come in the same size and materials. A knob used in this unit looks the same as the rocker switch used in DN70 series devices. Available in white, gold, gray, and black in three types of panels. 12-year guarantee.
Stock This Slim 500W Fan Dimmer in Three Panel Finishes at Factory Pricing
PC, tempered glass, or brushed aluminum panel. Rotary step‑type fan speed controller. OEM logo, custom packaging, 12‑year warranty included. Contact us for a wholesale quotation.
IEC Standard • 500W Capacity • Global Shipping
Factory-Direct Supply for Wholesale & OEM Partners
Your Source for DN70 Series Slim Fan Speed Controllers
The DN70351/DN70351S fan regulator introduces the crucial option of controlling ceiling fans on the DN70 series range. The combination of three top quality finishes, PC, tempered glass, and brushed aluminum, creates different quality options ranging from low cost to premium. The electronic stepped control revolutionizes the older resistive control and offers an efficient and noiseless way of regulating speed. The use of a rotary knob ensures that the design is in line with the DN70 series rocker switch style. The product has to be stocked together with the other DN70 series standard switches, power sockets, and communication sockets so that it forms a complete range of electrical accessories ready for sale globally in dimension of 88×86 mm.
Fan Dimmer vs Light Dimmer: Choosing the Right DN70 Wall Control for Every Room
A practical guide to specifying rotary fan speed controllers for residential and commercial ceiling fan installations.
Fan Dimmer vs Light Dimmer — The Critical Difference
A fan dimmer (DN70351/DN70351S) is designed for inductive motor loads — ceiling fans and wall fans. A light dimmer switch is designed for resistive or LED lighting loads. They use fundamentally different internal mechanisms and are not interchangeable. Using a light dimmer on a fan motor can damage both the dimmer and the fan, and may cause humming or overheating. Always specify a purpose‑built fan speed controller for fan applications, and a dimmer switch for lighting circuits.
Where Should You Install a Fan Dimmer?
The DN70351/DN70351S is ideal for any space fitted with a ceiling fan or wall fan. In bedrooms, it supports high speed for daily use and low speed for silent airflow at night. In living rooms, airflow can be adjusted to suit different activities. In dining rooms, low speed is recommended for unobtrusive air circulation. When applied to covered outdoor areas, the speed can be adjusted for patios and verandas. The 500W power rating exceeds the typical power requirement of domestic ceiling fans (which normally fall between 60W and 100W).
Panel Material Selection — PC, Glass, or Aluminum?
PC: Cost-effective and long-lasting suitable for large residential and commercial projects. Tempered Glass: Excellent finish with ability to resist fingerprints — used by elite hotels and top-end houses. Brushed Aluminum: Metal-industrial look suits modern commercial interiors and stylish homes. All three materials have the same dimensions – 88×86mm DN70 type and 12 years of warranty.
Frequently Asked Questions
What is a 500W fan dimmer used for?
In a 500W fan dimmer, the speed of the ceiling fan or wall fan motor is varied through the power sent to the motor. DN70351/DN70351S is a British standard slim 500W rotary fan speed controller, which has replaced old resistive regulators and bulky surface mount controllers with a modern 88×86mm DN70 series wall plate that fits flush in the wall.
What is the difference between a fan dimmer and a light dimmer?
Fan dimmer (DN70351/DN70351S) is designed for driving inductive motor loads such as ceiling or wall fans. A light dimmer, on the other hand, is used for resistive or LED lighting loads and is based on different principles. Using a light dimmer to control a fan may damage both devices, and create a noise or heating problems.
Can this fan dimmer control a fan with a light kit?
The DN70351/DN70351S model operates only the fan speed. In case the ceiling fan has an in-built light kit, an independent light switch should be installed to handle the light circuit. A common setup would involve a 2-gang back box designated for a DN70351 fan dimmer on one side of the box and a DN70 series light switch on the other side of the box that controls the fan lights.
Can I get this fan dimmer in different panel finishes?
Certainly, the DN70 series fan dimmer comes in three front panel styles—PC (resilient, economical), tempered glass (sleek, smear-resistant, luxury finish), and brushed metal (metallic industrial look)—but they are identical in size at 88mm x 86mm and are made in the same colors: White, Gold, Gray, and Black.
