Should You Use Supplemental Light in Your Chicken Coop During the Winter?

If you’re asking yourself, “Should I use supplemental light in my chicken coop during the winter?” the answer depends on your goals. Chickens naturally slow or stop egg production in colder months as daylight hours shrink, and while supplemental light can extend laying, it may also cause stress or affect long-term health. Many flock owners prefer to let hens rest naturally, while others add gentle morning light to keep eggs coming. Done carefully, supplemental lighting can be safe—but it’s not always necessary.

​Why Chickens Stop Laying in the Winter

If you’ve ever watched your nest boxes go from full in September to nearly empty by December, you’ve witnessed the natural seasonal cycle of your flock. For chicken keepers, the question “Should you use supplemental light in my chicken coop during the winter?” usually arises right after this drop-off in eggs. Here’s what happens:
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• Shorter daylight hours trigger molting. As fall approaches, hens shed old feathers and grow new ones for insulation. Since feathers are made of protein, the bird directs energy toward feather growth instead of egg production.
• ​Less daylight means fewer reproductive hormones. Chickens’ internal rhythms are tied to the amount of light they receive. When daylight dips below about 14 hours, egg production slows dramatically or halts.
• Egg laying is a survival tradeoff. Producing eggs in winter, when food is scarcer in the wild, doesn’t make sense from an evolutionary perspective. Resting conserves resources and allows hens to replenish their bodies.
  
  

So if your hens seem “lazy” in the colder months, don’t worry—they’re following a natural rhythm.

​The Case Against Supplemental Lighting

Many backyard keepers wrestle with this decision: keep the eggs flowing with supplemental light or let the hens take their seasonal break. Let’s address the main concerns about artificial light in winter coops.

Will Chickens Run Out of Eggs Sooner?

A common fear is that “forcing” hens to lay with light will make them run out of eggs early. In reality, this isn’t true.

• A hen is born with hundreds of thousands of potential egg cells—far more than she could ever lay in a normal lifespan.
  
• Even record-setting layers rarely exceed 1,200 eggs in their lifetimes. Most backyard hens naturally slow down after 3 years regardless of lighting.
  
• Stopping or continuing egg production in winter doesn’t empty the “egg bank”—aging and genetics determine the timeline.
  
  

So, no, your hens won’t lay fewer total eggs because of supplemental light.

Could Lighting Shorten Their Lifespan?

Here’s where the answer isn’t as clear-cut.

• Some veterinarians and poultry experts say supplemental light doesn’t shorten life expectancy.
  
• Others point to concerns about constant ovulation being linked to reproductive issues like ovarian cancer. One scientific study on Leghorn hens (used as a model for human health research) suggested that frequent ovulation could increase cancer risk.
  
  

The challenge is that large-scale farms rarely keep hens long enough to study the long-term impacts of supplemental light, so the data is sparse. Many backyard keepers, like myself, take the cautious route and avoid pushing hens beyond their natural cycle.

Stress During an Already Hard Season

Winter brings enough challenges—cold, less foraging, and reduced outdoor time. Adding artificial light can act as another stressor, especially if it’s not managed consistently. Stress impacts the immune system, making hens more vulnerable to illness.

​Why Some Flock Owners Choose Supplemental Light

Despite the above concerns, many chicken keepers do choose to provide light in the winter. And there are valid reasons for doing so:

• Steady egg supply: For families who rely heavily on their flock for food, store-bought eggs aren’t always appealing—or affordable.
  
• Budget concerns: Feeding hens through winter without any eggs in return can feel like wasted resources.
  
• Personal preference: Some keepers simply enjoy having fresh eggs year-round, and that’s okay.
  
  

If you do decide to provide supplemental lighting, the key is doing it safely and responsibly.

​Guidelines for Using Supplemental Light Safely

If your answer to “Should you use supplemental light in my chicken coop during the winter?” is yes, here’s how to do while minimizing any potential harm to your flock.

1. Don’t Add Light Too Soon for Pullets
Never add supplemental light for hens under 20 weeks old (or 22 weeks for slow-maturing heritage breeds). Forcing young pullets to start laying too early can cause health problems like egg binding or prolapse.

2. Add Light in the Morning, Not Evening
Chickens need a natural sunset to signal bedtime. If lights switch off suddenly at night, hens may panic and injure themselves trying to find the roost in the dark. Instead, add light in the early morning so the day length gradually extends while evenings remain natural.

3. Aim for 14–16 Hours of Light Daily
This is the sweet spot for steady egg production. Fewer than 14 hours usually means a drop in laying; more than 16 hours can stress hens. A timer helps keep this consistent, but remember to reset it every few weeks as days shorten or lengthen.

4. Choose Soft, Safe Lighting

• A 25–40 watt bulb is plenty.
• Strings of LED or Christmas lights work well.
• Avoid harsh fluorescents and, above all, never use heat lamps for light—they pose fire hazards.
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5. Prioritize Safety and Consistency

• Secure all wiring away from curious beaks.
• Use outdoor-rated extension cords if needed.
• Consistency matters more than brightness—sudden changes can stress the flock.​ ​

​Alternatives to Supplemental Lighting

Not ready to commit to artificial light? You can still enjoy eggs in winter with a little planning.

1. Stockpile in Advance

• Unwashed eggs (with the bloom intact) can sit at room temperature for 2–3 weeks.
• Refrigerated eggs (washed or unwashed) last 2–3 months.
• Collect extras in the fall to carry you through the lean months.
  
  

2. Preserve Your Eggs

• Freezing: Crack eggs into ice cube trays, freeze, then store in bags for later use in cooking.
• Pickling: A delicious option for extending shelf life.
• Waterglassing: The old-fashioned method using lime water—results vary, but some keepers swear by it.
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3. Practice the fine art of “Chicken Math”

• Add new pullets each spring. Young hens in their first laying cycle often continue producing through the winter, even when older hens molt. Rotating new birds into your flock annually ensures some eggs year-round without needing artificial light.​​

Why Some Chicken Keepers Embrace the Natural Laying Cycle

Personally, we lean toward letting hens rest in the winter. There’s something satisfying about syncing with natural rhythms—allowing both flock and keeper to slow down. Egg production becomes seasonal, like garden vegetables or fruit harvests.

Yes, it means buying a carton or two from the store occasionally. But for many keepers, the trade-off feels worthwhile for healthier hens and peace of mind.
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Ultimately, whether or not you provide supplemental light comes down to your goals, your budget, and your philosophy of chicken keeping.

Top Supplemental Lighting Questions, Answered!

Q: Should you use supplemental light in my chicken coop during the winter?
A: It depends. Supplemental light can extend egg production, but it may also add stress or impact long-term health. Many flock owners choose to let hens follow their natural cycle and take a winter break.
Q: How many hours of light do chickens need to keep laying?
A: Hens generally need 14–16 hours of light per day to sustain egg production. Anything less usually triggers a slowdown.
Q: Is supplemental lighting safe for chickens?
A: Yes, if done correctly. Use soft, low-wattage lighting in the morning, avoid sudden darkness, and never use heat lamps. Safety and consistency are key.
Q: Does supplemental lighting shorten a chicken’s lifespan?
A: There isn’t enough research to say for sure. Some vets argue it’s harmless, while others believe it may contribute to reproductive issues. Many backyard keepers choose to err on the side of caution.
Q: What’s the best alternative to using supplemental light?
A: Plan ahead: stockpile eggs in the fall, preserve extras, or add pullets each spring to maintain some winter laying without artificial light. 

Final Thoughts

The issue of whether or not to provide supplemental light for your chickens during the winter is a controversial one, but ultimately, it's up to you and your personal preferences. Should you decide to use supplemental lights, just make sure you do so safely and responsibly to protect your flock from any potentially harmful effects.

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