Electricity and Technology on Shabbat

Can You Turn on a Light Switch on Shabbat?

For many people encountering Shabbat observance for the first time, the restriction on using electricity is one of the most surprising aspects. No phone, no television, no computer, no flipping light switches. In a world where technology is woven into nearly every moment of our lives, the idea of a full 25-hour digital detox can seem radical.

But why? The Torah was written thousands of years before Thomas Edison. There is no verse that says "Thou shalt not check thy email." So where does this prohibition come from, and how does it work in practice?

The Halachic Basis: Why Is Electricity Prohibited?

The Torah prohibits melacha on Shabbat -- creative work as defined by the 39 categories of labor used to build the Tabernacle. Among those categories is mav'ir -- kindling a fire. When you strike a match or light a gas burner, you are clearly creating fire.

But electricity is not fire in the traditional sense. So why is it treated the same way? Over the past century, leading halachic authorities have analyzed electricity through several frameworks:

• Completing a circuit (Makeh B'Patish): Some authorities view closing an electrical circuit as an act of "completing" something -- similar to the melacha of striking the final hammer blow that finishes a useful object.
• Kindling (Mav'ir): Turning on an incandescent light bulb heats a filament to the point of glowing -- which closely resembles kindling a fire. While LED bulbs and screens work differently, the established practice treats all electrical switches similarly.
• Building (Boneh): Some see completing an electrical circuit as a form of building -- creating a functional pathway where none existed before.
• Custom and consensus: Regardless of which specific melacha category applies, there is a strong and nearly universal consensus among halachic authorities that operating electrical devices is prohibited on Shabbat. This has been the accepted practice for over a century.

The practical bottom line: turning electrical devices on or off is not done on Shabbat. This includes light switches, appliances, phones, computers, televisions, and any other electronic device.

Common Questions About Electricity on Shabbat

Can I Leave Lights on Before Shabbat?

Absolutely, and this is standard practice. Before Shabbat begins, you turn on all the lights you will need for the evening and the next day. Many families use a combination of overhead lights, table lamps, and nightlights to create a warm and comfortable environment for the full 25 hours of Shabbat.

What About Timers?

Automatic timers are widely used and accepted in Shabbat-observant homes. You can set a timer before Shabbat to turn lights on and off at specific times -- for example, having the dining room lights turn on before dinner and the bedroom lights turn off at a reasonable bedtime. The key principle is that you are not operating the switch; the timer, which you set before Shabbat, is doing so automatically.

Common uses for Shabbat timers include:

• Living room and dining room lights
• Bedroom lights
• Bathroom lights (some leave these on throughout Shabbat instead)
• Porch lights
• Air conditioning or heating in some setups

Can I Use a Refrigerator on Shabbat?

Yes, you can open and close the refrigerator on Shabbat, but there are some considerations. In many modern refrigerators, opening the door triggers an interior light and may affect the compressor cycle. To prepare for Shabbat, many people disable the interior light (either by unscrewing the bulb, taping the switch, or using a "Shabbat mode" if available). Some are careful to open the refrigerator only when the motor is already running, to avoid directly causing it to turn on.

What About an Electric Hot Plate or Warming Tray?

Electric hot plates and warming trays are commonly used to keep food warm throughout Shabbat. They should be turned on before Shabbat and left on until Shabbat ends. The same applies to hot water urns -- fill them and turn them on before Shabbat, and they remain on throughout the day. See our guide to using a hot water urn on Shabbat for details.

Can I Adjust a Thermostat?

No, adjusting a thermostat on Shabbat involves operating an electrical device. Set your thermostat to a comfortable temperature before Shabbat begins. If you anticipate temperature changes, set it to the most comfortable middle ground or use a programmable thermostat set before Shabbat.

Phones, Computers, and Social Media

This is where the rubber meets the road for many modern Jews. Can you check your phone on Shabbat?

The straightforward answer is no. Using a smartphone involves multiple Shabbat prohibitions -- completing circuits, potentially writing (typing), and more. But beyond the technical halachic analysis, there is a deeper dimension.

Shabbat is described as a taste of the world to come -- a day of genuine peace and presence. The phone, with its endless stream of notifications, news, and social media, is perhaps the single biggest obstacle to that experience. Many people who begin keeping Shabbat report that putting away their phone is the most transformative part of the practice. Suddenly, they are fully present with their family, their thoughts, and their community in a way that rarely happens during the week.

Practical tips for managing without your phone:

• Silence it and put it in a drawer or designated spot before Shabbat.
• Let friends and family know that you will not be reachable on Shabbat (they will adjust).
• If you are concerned about emergencies, some people leave their phone where they can hear it ring but are not tempted to check it casually. Life-threatening emergencies always override Shabbat restrictions.
• Use a regular alarm clock instead of your phone alarm.

Driving on Shabbat

Driving a car involves multiple prohibited activities: igniting the engine (kindling fire), operating electrical systems, and potentially carrying items between domains. For this reason, observant Jews walk to synagogue and to visit friends on Shabbat rather than driving.

This is one reason why many observant Jewish families choose to live within walking distance of a synagogue. It shapes community geography in a meaningful way -- neighborhoods where people walk to shul together become close-knit communities where neighbors actually know each other.

Modern Technology Challenges

Smart Homes

Modern smart home technology presents new questions. Motion-sensor lights, smart speakers, automatic doors, and Wi-Fi-connected appliances can create situations where you unintentionally activate electronic devices just by walking through your own home. Before Shabbat, it is important to disable motion sensors, set smart devices to appropriate modes, and ensure that your normal Shabbat activities will not trigger automated systems.

Elevators

In buildings with "Shabbat elevators," the elevator is programmed to stop at every floor automatically, so no one needs to press a button. This is common in Israeli hotels and apartment buildings. If no Shabbat elevator is available, stairs are the way to go.

Security Systems

If your home has a security system that activates when doors open, you should set it to a Shabbat-friendly mode or disable the door sensors before Shabbat, while leaving the essential security features operational.

The Positive Side of Disconnecting

It is easy to focus on what you cannot do with technology on Shabbat. But the experience of those who practice it tells a different story. Not using technology on Shabbat is not a sacrifice -- it is a gift.

Consider what you gain:

• Uninterrupted family time: No one is checking their phone at the dinner table. Conversations go deeper. Children have their parents' full attention.
• Mental rest: The constant stimulation of screens, news, and notifications creates a low-level stress that most people are not even aware of until it stops.
• Physical presence: Without the option of driving, you walk. You notice your neighborhood. You greet people on the street.
• Creativity: Without digital entertainment, you read books, play board games, sing songs, take naps, and have the kind of long, meandering conversations that rarely happen in the connected world.

Many people -- including those who are not religiously observant -- have adopted some form of "digital Shabbat" precisely because of these benefits. The Jewish tradition was ahead of its time in recognizing that humans need regular, structured breaks from their tools.

Getting Started: Practical Steps

If you are new to Shabbat observance and the technology restrictions feel overwhelming, here is a gradual approach:

1. Start with the phone: Put it away for Shabbat. This single change will have the biggest impact on your experience.
2. Set up your home: Lights, timers, hot plate, and thermostat -- take care of these before Shabbat. See our guide to preparing for Shabbat.
3. Learn gradually: You do not need to master every detail on day one. Each Shabbat is an opportunity to learn something new about the halachot and to experience the beauty of disconnecting more fully.

The restrictions around electricity and technology are not about deprivation. They are about creating space -- space for rest, for connection, for the extra soul that Shabbat brings. In a world that never stops buzzing, Shabbat offers something rare and precious: quiet.