---
title: FAQs
description: Here, we have compiled a comprehensive guide to address the most commonly asked questions.
---

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# FAQs

## Here, we have compiled a comprehensive guide to address the most commonly asked questions.

Whether you're setting up your first smart switch or expanding your Lightwave system, this FAQ answers the most common questions about compatibility, installation, performance, and features.

---

### 🔧 Installation & Wiring

#### **What size back box do I need?**

- **UK Dimmers**: Require a **35mm** back box for flush fitting.
- **EU Dimmers**: Require a **50mm** back box.

> All Lightwave devices include a spacer that provides an extra **7–10mm** of clearance if needed.

#### **Do I need additional wiring?**

No. Lightwave devices are designed to work with **standard UK wiring**.

#### **Do I need a neutral wire?**

A **neutral wire is not required**, but if available, it enables additional functionality like supporting **non-dimmable bulbs**. If you’re rewiring your home, we strongly recommend including a neutral wire at switching points for future flexibility.

---

### 💡 Bulb Compatibility

#### **Do I need dimmable bulbs?**

Yes, we **recommend dimmable LED bulbs** with Smart Dimmers. If using a neutral wire, non-dimmable bulbs will work in the majority of cases.  
🔗 [Read: Controlling Non-Dimmable Lighting](https://support.lightwaverf.com/knowledge-base/what-is-discrete-on/off-and-when-should-i-enable-it?hsLang=en)

#### **Will my bulb work with Lightwave?**

Due to bulb variability in the market, we cannot guarantee 100% compatibility. However, our **Smart Calibration** feature automatically adapts to different bulbs for better performance.

#### **Is there a minimum and maximum load requirement?**

- **Minimum Load**: 10W of LED per channel
- **Maximum Load**: 100W of LED per channel

> Requirements may vary for specific types like LED strip lighting.

---

### 📶 Device Range & Connectivity

#### **What is the range of Lightwave devices?**

Lightwave uses a **low-frequency radio protocol** for superior range:

- Up to **1km in open-field testing**
- Around **100m inside typical homes**

> To maximise range, install the hub in a high, central location. Keep away from metal surfaces and large water tanks.

#### **Do I need a hub?**

Yes, the **Link Plus hub** is required for:

- Smart app control
- Voice assistants (e.g. Alexa, Google)
- Timers & automations

Even without an internet connection, your schedules will still run as long as the hub remains powered.

#### **How many devices can I pair to one hub?**

There is **no limit** to the number of devices you can pair with a single Lightwave hub.

---

### 💡 Smart Lighting Features

#### **Can I use Lightwave for multi-way switching?**

Yes. Lightwave supports **multi-way switching**. All 1, 2, 3, and 4-gang smart dimmers can be configured as part of a multi-way circuit through the app. **(All switch points in the 2-way/multi-way setup must be Lightwave dimmers)**

---

### 🛡 Warranty & Premium Services

#### **What warranty do Lightwave devices include?**

All Lightwave products come with a **2-year standard warranty**.  
You can **extend to a lifetime warranty** by becoming [**Lightwave PLUS Member **](https://shop.lightwaverf.com/pages/lifetime-warranty-with-lightwaveplus)

#### **What is Lightwave PLUS?**

Lightwave PLUS is a premium membership offering:

- Lifetime warranty
- Priority support
- Expert help and setup
- Exclusive perks

---

Need further help?  
📞 **Call us at 0121 468 8987**  
📩 **Or submit a support request online [here](https://shop.lightwaverf.com/pages/help-support)**

- [What do I need? & System Setup](https://support.lightwaverf.com/knowledge/what-do-i-need-system-setup?hsLang=en#main-content)

    - [Getting started on the Lightwave App](https://support.lightwaverf.com/knowledge/what-do-i-need-system-setup?hsLang=en#getting-started-on-the-lightwave-app)
    - [Lighting](https://support.lightwaverf.com/knowledge/what-do-i-need-system-setup?hsLang=en#lighting)
    - [Heating](https://support.lightwaverf.com/knowledge/what-do-i-need-system-setup?hsLang=en#heating)
    - [Automations](https://support.lightwaverf.com/knowledge/what-do-i-need-system-setup?hsLang=en#automations)
    - [Third Party Integrations](https://support.lightwaverf.com/knowledge/what-do-i-need-system-setup?hsLang=en#third-party-integrations)
    - [FAQ's](https://support.lightwaverf.com/knowledge/what-do-i-need-system-setup?hsLang=en#faqs)
    - [Advanced Features](https://support.lightwaverf.com/knowledge/what-do-i-need-system-setup?hsLang=en#advanced-features)
- [App Guidance & Automations](https://support.lightwaverf.com/knowledge/app-guidance-automations?hsLang=en#main-content)

    - [My Account](https://support.lightwaverf.com/knowledge/app-guidance-automations?hsLang=en#my-account)
    - [App Guidance](https://support.lightwaverf.com/knowledge/app-guidance-automations?hsLang=en#app-guidance)
    - [Automations](https://support.lightwaverf.com/knowledge/app-guidance-automations?hsLang=en#automations)
- [Troubleshooting](https://support.lightwaverf.com/knowledge/troubleshooting?hsLang=en#main-content)

    - [General](https://support.lightwaverf.com/knowledge/troubleshooting?hsLang=en#general)
    - [Lighting](https://support.lightwaverf.com/knowledge/troubleshooting?hsLang=en#lighting)
    - [Heating](https://support.lightwaverf.com/knowledge/troubleshooting?hsLang=en#heating)
    - [Power](https://support.lightwaverf.com/knowledge/troubleshooting?hsLang=en#power)
    - [Automations & Hub](https://support.lightwaverf.com/knowledge/troubleshooting?hsLang=en#automations-hub)
- [Installation Guides](https://support.lightwaverf.com/knowledge/installation-guides?hsLang=en#main-content)

    - [Link Plus Hub](https://support.lightwaverf.com/knowledge/installation-guides?hsLang=en#link-plus-hub)
    - [Lighting](https://support.lightwaverf.com/knowledge/installation-guides?hsLang=en#lighting)
    - [Power](https://support.lightwaverf.com/knowledge/installation-guides?hsLang=en#power)
    - [Relays](https://support.lightwaverf.com/knowledge/installation-guides?hsLang=en#relays)
- [Connect Series Support Archive](https://support.lightwaverf.com/knowledge/connect-series-support-archive?hsLang=en#main-content)

    - [General](https://support.lightwaverf.com/knowledge/connect-series-support-archive?hsLang=en#general)
    - [Lighting](https://support.lightwaverf.com/knowledge/connect-series-support-archive?hsLang=en#lighting)
    - [Heating](https://support.lightwaverf.com/knowledge/connect-series-support-archive?hsLang=en#heating)
    - [Power](https://support.lightwaverf.com/knowledge/connect-series-support-archive?hsLang=en#power)
- [Contact Us](https://support.lightwaverf.com/knowledge/contact-us?hsLang=en#main-content)

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