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L8-HB / L8-HBU · SMART WATER HEATER SWITCH

Power on. On your schedule.

Control a compatible storage water heater from the LCD panel or the app for your selected version. Set a timer and keep everyday power control within reach.

Power switching · Neutral required · EU / US · White / Black
L8-HB White water heater switch

BEFORE YOU CHOOSE

Match the switch to the heater and circuit.

EU and US panels use double-pole 16 A switching. Have a qualified electrician confirm the actual load, wiring and installation requirements.

01
Power & wiring

AC 100–250V · 50/60Hz · Live and neutral required

02
Rated current

16 A · double-pole

03
Load type

Compatible single-phase resistive storage water heater only, within 16 A at the actual supply voltage.

04
Control boundary

Power on/off only; no temperature sensing, setting or adjustment.

05
Required protection

Keep the required upstream circuit/leakage protection and heater safety devices. This switch has no independent leakage, overload, overcurrent, short-circuit, overheat or dry-heating protection.

06
Enclosure & conductors

>38 mm; ≥50 mm recommended, with sufficient wiring space · 14–12 AWG

LCD WATER HEATER CONTROL

Switch power. Set a time.

Explore the actual device interfaces for power control, a custom timer and display settings. Timer values and energy figures illustrate the interface, not a heating or metering guarantee.

Switch power on or off, or choose a timer shortcut. ON means the relay is closed and the heater is powered; it does not mean the water is heating or ready.

Device interface examples. The heater's own thermostat and safety systems remain responsible for its heating behaviour.
L8-HB Power & shortcuts
Device interface example · Power & shortcuts

PERSONALISE YOUR DISPLAY

A display that fits your room.

Choose a screen theme, adjust brightness and set horizontal or vertical orientation in the device settings.

L8 · Themes

A theme to suit your space.

Choose one of five supplied themes for the LCD display. The theme changes the interface appearance; it does not change the heater's operating temperature.

  • Five screen themes
L8-HB theme 1
L8-HB theme 2
L8-HB theme 3
L8-HB theme 4
L8-HB theme 5

L8 · EDGE LIGHTING

A softer glow. Even at rest.

Let the panel edge breathe and change colour while idle, or choose a colour of your own. The decorative edge light is separate from the controlled lights or appliance.

L8-HB · EU · White
Edge-lighting illustrationActual colour and brightness depend on the unit and surroundings.

EXPLORE THE GLOW

Automatic breathing & colour changes

Let the edge light fade gently in and out as its colour changes. Automatic mode takes care of the colours for you.

Light when you want it.

Set the edge light and its time settings on the device. These controls preview the effect on this page; they do not configure a switch.

MADE FOR EVERYDAY USE

Touch controls behind a glass panel.

A tempered-glass panel and flame-retardant PC housing, with the display at the centre of everyday operation. Check the selected format and electrical requirements before installation.

L8-HB LCD display
LCD display
L8-HB Panel and housing
Panel and housing
L8-HB Housing profile
Housing profile
L8-HB Angled view
Angled view

SMART LIVING

Keep power control close, even away from the wall.

Use Smart Living to switch the heater's power, set schedules and view energy information. Connected features require setup, 2.4 GHz Wi-Fi and available network services. Displayed figures are interface examples; metering accuracy is not specified.

Power on/offSchedulesEnergy information
L8-HB Smart Living water heater control
L8-HB Smart Living schedule
L8-HB Smart Living energy information

WI-FI MESH

L8 series. Different controls, one Mesh.

Mix compatible L8 switches in one network: 7-in-1, 4-in-1, dimmer, fan and water heater controls. Switches connect through neighbouring nodes, so each switch does not need a direct Wi-Fi connection to the router.

No dedicated gatewayA switch acts as the master
≤8 mBetween adjacent switch nodes
Up to 256 switchesIn one switch Mesh network
Your router2.4 GHz Wi-Fi
L8-HS master switchFirst configured switch7-in-1 switch · Master example
L8-HD Mesh switchDimmer switchConnects through Mesh
L8-HF Mesh switchFan switchConnects through Mesh
L8-HB Mesh switchWater heater switchConnects through Mesh
Connection diagram: shows a possible forwarding path, not a floor plan, required purchase bundle or guaranteed coverage. Keep adjacent switch nodes within the stated distance; walls and interference affect the connection.
  1. Start near the router

    Configure the first switch where the router signal is good. The system automatically sets this first configured switch as the master.

  2. Add the other switches

    Complete setup for the other compatible switches. Keep adjacent Mesh switch nodes no more than 8 metres apart.

  3. Let switches form the network

    The switches automatically form their Mesh network. Any compatible switch can serve as the master when configured first; a separate gateway or host is not required.

L8 switches form a network within the L8 series; it does not extend household Wi-Fi for phones or computers. Remote app and cloud features still require the router, internet access and available services.

Open integration

L8-HB · LANBON edition

LOIP

Read device capabilities, send commands and retrieve state through the LANBON local API.

Use the local API →

MODEL & SPECIFICATIONS

Technical specifications

The facts for your chosen panel.

Key specifications

Rated voltage
AC 100–250V · 50/60Hz
Rated current
16 A · double-pole
Resistive load limit
≤16 A at the actual supply voltage; verify the heater nameplate
Wiring
Live (L) + neutral (N) required; verify double-pole terminal markings
Wire / conductor size
14–12 AWG
Terminal torque
0.5 N·m
Wall-box depth
>38 mm; ≥50 mm recommended, with sufficient wiring space
Installation depth
32 mm

Check fit and electrical conditions together.

EU: 60 mm fixing centres. Use a compatible square or round box. >38 mm; ≥50 mm recommended, with sufficient wiring space · 14–12 AWG

HEATER & CIRCUIT COMPATIBILITY

Control the supply. Keep the heater's safeguards.

Storage electric heaters

For a compatible single-phase resistive heater within the supplied version's current rating. Confirm the actual supply voltage and heater nameplate before connection.

Power, not temperature

ON indicates a closed relay, not active heating, water temperature or hot-water readiness. Retain the heater's thermostat and all required circuit and safety protection.

Do not connect

Instantaneous electric heaters, gas heaters, inductive loads or loads above the supplied version's rating. A timer or app command is not an independent safety cut-out.

INSTALLATION

Check the circuit before wiring.

  1. Have a qualified electrician isolate the supply and verify live, neutral and the required protective earth arrangement.
  2. Match the double-pole 16 A unit to the heater's resistive load, supply voltage and required upstream protection.
  3. Use 14–12 AWG conductors and a wall box deeper than 38 mm; at least 50 mm is recommended. Obtain current double-pole wiring instructions and verify the actual terminal markings.
  4. Inspect connections and secure the panel before restoring power. Check power switching, timer settings and power-restoration behaviour while retaining the heater's safety systems.

WATCH THE CONTROLS

See the water heater controls in use.

Water heater control demonstration

Supplied LANBON-version control demonstration; no heating-time, temperature or safety-performance test is implied.

DOCUMENTS & SUPPORT

Prepare for the right installation.

Preview or download panel dimensions, wall-box drawings and package contents. Ask support for current double-pole wiring instructions, certification applicability and regional service terms.

Get product support