# Dimmer module Harry Potter ARMPMV 400 W ST150, 400 W phase-cut control for mains lighting

**URL:** https://aio.lv/en/product--harry-potter-477910191049--12394065
**Data updated:** 2026-04-26 22:21 (EEST)
**Category:** Smart Switches
**Manufacturer:** harry potter
**Manufacturer code:** 477910191049
**EAN:** 4779101910490
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 20.99 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 17.35 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--harry-potter-477910191049--12394065

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

Harry Potter ARMPMV 400 W ST150 is a dimmer module designed for mains lighting control with a rated power of 400 W. It provides phase-cut dimming for compatible incandescent and dimmable LED or halogen loads, enabling adjustable light output for residential or commercial installations. Suitable for integration into lighting circuits where smooth brightness adjustment is required.

## Long description

Harry Potter ARMPMV 400 W ST150 is a compact dimmer module for mains lighting that supports phase-cut control with a rated load of 400 W. The unit is intended for installation in lighting circuits to allow smooth dimming of compatible incandescent, halogen and dimmable LED lamps. Its design makes it suitable for integration into residential or light-commercial electrical installations where precise adjustment of light output is required.
Advantages
The dimmer provides phase-cut dimming that is compatible with a wide range of resistive and some electronic loads, delivering smooth brightness transitions and reducing flicker with suitable lamps. Its 400 W rated capacity supports multiple luminaires on a single circuit and the compact module format simplifies installation into existing switch boxes or distribution assemblies. The device is intended to maintain stable performance under normal mains conditions and to enable straightforward manual or remote control when combined with appropriate switching systems.
Suitable for
Dimming incandescent and halogen lamps within the rated power.
Dimmable LED lamps that explicitly support phase-cut control.
Residential rooms such as living rooms, bedrooms and dining areas.
Small commercial spaces, meeting rooms and hospitality areas with compatible fixtures.
When it may not be suitable
This module may not be suitable for use with non-dimmable LED lamps, electronic ballasts for fluorescent fixtures, or other load types that do not support phase-cut dimming. For lamp combinations or fixtures with low minimum load or non-standard electronics, the dimmer may produce flicker, limited dimming range, or unreliable operation.
Key specifications
Control method: leading or trailing edge phase-cut dimming (as provided by the model).
Rated load capacity: 400 watts for resistive and compatible electronic loads.
Intended supply: mains voltage operation (single-phase household/commercial mains).
Compatibility: incandescent, halogen and compatible dimmable LED lamps.
Form factor: compact module suitable for installation in switch boxes or distribution assemblies.
How to use
Install the dimmer module in-line within the lighting circuit following local electrical regulations and safety standards. Connect the mains live and switched live conductors according to the wiring diagram supplied by the installer or product documentation, and ensure a secure neutral connection where required by the installation type. Verify lamp compatibility before applying power and perform an initial lamp test at various dimmer positions to confirm stable dimming. For retrofits, replace the existing switch or module with the ARMPMV unit and secure the module inside the mounting box or panel.
What to consider before purchase
Confirm lamp compatibility: only use with incandescent, halogen or dimmable LEDs rated for phase-cut dimming.
Calculate total connected load to ensure it does not exceed 400 W.
Check the type of phase-cut control required by the lamps (leading vs trailing edge) and whether the module matches that requirement.
Verify space available in the mounting box for the module and wiring connections.
Usage recommendations
For reliable performance, pair the dimmer with lamps explicitly specified as dimmable and tested for phase-cut control. Avoid mixing large numbers of different lamp types on the same circuit. If you observe flicker or limited dimming range, test with alternative dimmable LEDs or consult an electrician to confirm correct wiring and load characteristics.

## FAQ

### How much does the Dimmer Harry Potter ARMPMV 400 W ST150 cost, and is it available for purchase?

The price is 20.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 15.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All harry potter products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized harry potter service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12394065/68509023_large.webp