# F&F AZH-S-12V Twilight Switch with External Hermetic Probe 12V 16A 2-1000lx

**URL:** https://aio.lv/en/product--ff-azh-s-12v--10812711
**Data updated:** 2026-05-18 02:39 (EEST)
**Category:** Smart Sensors
**Manufacturer:** FF
**Manufacturer code:** AZH-S-12V
**EAN:** 5908312590156
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 32.49 €
**Prices and availability valid until:** 2026-07-24 23:59
**Price without VAT (21%):** 26.85 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ff-azh-s-12v--10812711

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

The F&F AZH-S-12V is a twilight switch designed for automatic lighting control based on ambient light levels. It features an external hermetic probe, an operating range of 2-1000lx, and a 12V power supply with a 16A maximum load capacity. This device is ideal for outdoor lighting systems, ensuring energy efficiency by activating lights only when natural light is insufficient.

## Long description

The F&F AZH-S-12V is a reliable twilight switch engineered for the automatic control of lighting systems based on real-time ambient light intensity. By utilizing an external hermetic probe, the device accurately monitors light levels and triggers connected circuits only when natural illumination falls below the user-defined threshold. Operating on a 12V power supply with a robust 16A load capacity, this switch provides an efficient solution for managing outdoor or indoor lighting, helping to reduce energy consumption by ensuring lights are active only when necessary.
Advantages
The primary benefit of the F&F AZH-S-12V is its ability to automate lighting processes without manual intervention, which significantly enhances convenience and energy efficiency. The inclusion of an external hermetic probe allows for flexible installation, as the sensor can be placed in an optimal location to detect ambient light while the main control unit remains protected. Its wide adjustment range of 2 to 1000 lux ensures precise control tailored to specific environmental conditions, while the 16A switching capacity makes it suitable for handling various lighting loads.
Suitable for
Outdoor lighting systems for gardens and pathways
Automatic control of building facade illumination
Street and driveway lighting management
Indoor lighting in areas requiring automatic dusk-to-dawn operation
This device may not be suitable for applications requiring high-voltage AC switching, as it is specifically designed for 12V DC systems. Additionally, it is not intended for use in environments where the light sensor might be obstructed by artificial light sources, which could lead to incorrect switching cycles.
Key specifications
Supply voltage: 12V DC
Maximum load current: 16A
Light intensity adjustment range: 2-1000lx
Sensor type: External hermetic probe
Operating temperature: Suitable for standard outdoor conditions
To use the F&F AZH-S-12V, mount the control unit in a suitable enclosure and install the hermetic probe in a location exposed to natural daylight but shielded from direct artificial light sources. Connect the power supply and the lighting load according to the wiring diagram provided with the device. Once installed, use the adjustment knob to set the desired lux threshold at which the lights should activate. The device will then automatically monitor light levels and switch the load accordingly.
What to consider before purchase
Ensure your lighting system operates on a 12V DC power supply
Verify that the total load of your lighting does not exceed 16A
Confirm that the cable length between the probe and the control unit is sufficient for your installation site
Check that the mounting location for the probe is free from shadows and artificial light interference
Usage recommendations
For optimal performance, ensure the external probe is positioned away from direct light sources such as street lamps or security lights, as these can cause the switch to cycle unnecessarily. Regularly clean the probe surface to maintain accurate light detection.

## FAQ

### How much does the F&F AZH-S-12V Twilight Switch with External Probe cost, and is it available for purchase?

The price is 32.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 24 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 14.07.2026 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 FF 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 FF 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/10812711/60118928_large.webp