Switching one light in the camper from two places

Updated 9 October 2026Lighty

You do not need two-way switching for this. Several push buttons can control the same light channel without being wired to each other. One at the sliding door, one at the bed, both switch the same light.

Why this makes such a difference in a camper

Traditionally, for two switching points you need two-way switching with an extra cable between the two points. In a vehicle this means: another cable through pillars, under trim panels, right across the conversion. Exactly the cables that cost time, weight and nerves.

With Camper Jarvis, each push button only sends a short pulse to the module it is connected to. What happens next is decided by the module itself. That is why the number of push buttons per light channel is not limited, and your push buttons also work when the SmartKnob is not there.

Push button or switch?

Both work. The rule of thumb:

  • Push buttons wherever you want to dim directly at the wall. Dimming works by holding the push button.
  • Switches are perfectly fine where it is only about on and off. You can keep existing switches, so you do not have to rebuild the whole installation. Switches go directly on the push button input of Lighty, not on Lighty Extension.

What you need for this

One push button input is already built into Lighty. With Lighty Extension you get up to five switching points for five individual channels, with push buttons. You can then connect as many push buttons per channel as you like.

In addition, every light can be controlled via the SmartKnob and via the dashboard on your phone or tablet. All ways are equal and stay in sync: whatever you change at the push button, you see immediately in the dashboard.

Related questions

What can I control with Lighty?

Lighty controls all the lighting in your camper over 5 independent channels. Everything is possible, from a single white strip to full RGBWW lighting with colour plus warm and cool white. Or you connect up to five individual lights, such as kitchen, bathroom, bed left, bed right and outdoor light, each on its own. You set colour, colour temperature, brightness and entire light scenes just as you like.

Does Lighty work on 12V and 24V?

Yes, both without any changes. Lighty works in the range from 9 to 36V, so it is just as much at home in a 12V panel van as in a 24V motorhome.

Do I need a SmartKnob for Lighty to work?

Not necessarily. From firmware 0.4.7, a new Lighty responds to its push buttons straight away, without any setup. With Lighty Extension, each of the five push buttons switches its own channel. A short press switches, press and hold dims. With just one push button and no Lighty Extension, you switch channel 2. Even if your SmartKnob ever fails, your push buttons keep switching and dimming. The SmartKnob adds colours, white light (warm white and cool white as one light), scenes, the dashboard, automations, the wireless push buttons and the double tap for all lights.

How is Lighty connected, and what is in the box?

Connection is deliberately kept simple: power and light channels go into high-quality Phoenix lever terminals, almost tool-free, safe and reusable. You wire the push button to the supplied pluggable spring terminal connector and then simply plug it in. In the box you will find Lighty, four mounting screws and the pluggable spring terminal connector for the push button.

Which LED strips work with Lighty?

Lighty controls single-colour and multi-colour LED strips with shared colour channels, meaning normal single-colour strips as well as RGB, RGBW and RGBWW strips. Addressable pixel strips (such as WS2812), where every LED is controlled individually, are deliberately not supported. Lighty is not designed for them.

How many metres of LED strip can I connect?

What counts is not the length but the current: Lighty handles 20A in total. For example, a COB strip with 14W per metre draws about 1.2A per metre at 12V. Two strips of 3m each come to roughly 7A and fit easily. Several strips may also share one channel.

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