A brooder heat lamp does one job: it gives newly hatched chicks a warm place to rest while their bodies cannot yet hold their own temperature. Most failures come from how the lamp is used, not from the bulb. Hung too low, left without a thermometer, mounted on a clip that can drop, or placed so chicks have no cooler area to move to, a good lamp still causes problems.

Key Takeaways

• Start at 90–95°F (32–35°C) at chick level in week one, then lower the target by about 5°F (3°C) each week by raising the lamp.
• Adjust with a thermometer at chick height and by watching the chicks. Wattage alone does not tell you the temperature.
• Build a warm zone and a cool zone. Hang the lamp over one end of the brooder so chicks can walk out of the heat.
• Heat lamps are a fire risk. Use a chain or clamp, a guard, a clean fixture, a direct outlet connection and an extinguisher within reach.
• Over a whole brooding period, electricity costs more than the bulb. Use the lowest wattage that holds your target.

Why Chicks Need a Heat Source

Newly hatched chicks cannot regulate body temperature well in their first weeks. University of New Hampshire Cooperative Extension describes a simple brooder as an infrared heat lamp over a confined area, and Manitoba Agriculture also names the heat lamp as the most common heat source for small flocks. A hen would normally provide this warmth. Your lamp has to stand in for her.

An infrared lamp passes current through a filament inside glass. Most of the output is radiant energy that is absorbed by the first surface it reaches: feathers, skin, litter. The air warms slowly, but the chicks in the beam warm quickly. That behavior is useful because it creates a warm spot with cooler space around it, which is exactly what young birds use to self-regulate.

Brooder Layout: Build a Heat Gradient

A common mistake is to hang the lamp in the center of a small box. If the box is small and the lamp is close, the whole floor can overheat and chicks have nowhere to go. A larger brooder tolerates more error. Hang the lamp over one end so the far end stays cooler, and set feed and water in the cooler area.

Table 1. Brooder layout choices

Temperature Schedule

University of New Hampshire Extension advises measuring about 2.5 inches above the litter under the lamp, aiming for the 90–95°F range at first, and lowering it by 5°F per week by raising the lamp. Manitoba Agriculture gives a similar plan in Celsius: 32–35°C in week one, then about 3°C less each week until room temperature (about 20°C) is reached. The table below combines both.

Table 2. Weekly target temperature at chick level

Treat the calendar as a starting point. In a cold, drafty coop you may need more heat than the table suggests in week five, and in a warm, insulated room less. The chicks tell you which.

Table 3. Reading chick behavior

Choosing Wattage

A Texas Agricultural Extension bulletin on brooding notes that a 250 W lamp is the usual choice for brooders, and that a 125 W bulb can supply enough heat in late spring or where temperatures are not expected to fall below about 50°F. That bulletin is old and was written for larger brooders, so treat it as a guide to the logic, not a rule. The practical points below are my own recommendations based on that logic and on the temperature targets above.

Table 4. Starting points for wattage (adjust with a thermometer)

Glass, color and fitting

• Red or clear. Heat output depends on wattage and construction. Red tint mainly reduces visible glare, and many poultry keepers prefer it in housing. Compare lamps by wattage, not color, when you need more heat.
• Hard glass. Handles thermal shock better where a draft or a splash of cold water could reach a hot bulb. See the R40/R125 Hard Glass IR Lamp and the Red Coating version.
• Coated glass. A coating such as the one on the R40 IR Lamp TEFLON is typically chosen so that fragments are held together if a bulb breaks. Confirm the details on the product page.
• Socket and base. Use a ceramic socket rated for the wattage, with a heat-resistant cord. The lamp base (E26 or E27) must match the socket.

Zhongrun Lamps Suitable for Brooders

Haining Zhongrun Lighting & Electronics researches and manufactures infrared and UV lamps. For chick brooding, the R40/R125 family is the closest match, since it covers the wattages in Table 4. According to the manufacturer's category page, these lamps run on 120 V or 240 V, are offered in 125, 150, 175, 200, 250 and 275 W, use E26 or E27 bases, come in 165 mm or 182 mm lengths and have a rated life of about 5,000 hours. Check the voltage marking against your supply before switching on, because a lamp on the wrong voltage can fail very quickly or underperform.

Table 5. Product options for chick brooding (from the manufacturer's product pages)

Browse the full product range, the BR40/BR125 category or the Animal Breeding application page for more detail.

Setting Up a Brooder Lamp: Step by Step

1. Run the brooder at least a day before the chicks arrive. University of New Hampshire Extension advises this so you can settle the temperature in advance.
2. Hang the lamp securely. Use a chain with a locking connector or a purpose-made clamp, not twine, tape or the lamp's own cord. NDSU Extension recommends a non-flammable hanger.
3. Set a safe starting height. Many keepers begin higher than they think necessary and lower the lamp in small steps. As a reference point, livestock guidance cited in our animal heating lamp guide keeps the lamp at least 20 inches from bedding.
4. Put a thermometer at chick level under the beam. Wait for the reading to stabilize before adjusting.
5. Confirm there is a cool zone at the other end of the brooder. If the whole floor is uniformly hot, raise the lamp or reduce the wattage.
6. Introduce the chicks and watch for the first hour. Use Table 3 to read their behavior, then check again after a few hours and at night.
7. Step the heat down weekly by raising the lamp, following Table 2.
8. Remove the lamp once the temperature under it matches the surroundings.

Chicks also need rest. If your room is cold at night, consider whether a non-light heat source suits you better. Our ceramic heat lamp guide explains how emitters that give off heat without visible light work.

Fire and Safety Controls

Extension services consistently warn that heat lamps raise barn fire risk, especially over deep bedding. NDSU Extension notes that an animal bumping a lamp or chewing a cord can start a fire within minutes. Cornell Cooperative Extension also recommends isolating brooders in separate small buildings where possible, adding smoke detectors and keeping an extinguisher at building entrances. The table turns that advice into a checklist.

Table 6. Risk controls for a brooder lamp

A heat lamp suits a short brooding period. If you brood in a main barn full of hay and bedding, or you cannot supervise, a radiant plate or a purpose-built enclosed brooder may be the safer choice. Our industrial heat lamp guide explains how infrared fixtures should be specified and installed.

Running Cost and Lamp Life

A 250 W lamp left on continuously uses 0.25 kW × 24 h = 6 kWh per day. A 125 W lamp uses half that. The example below runs the lamp for the full 28 days at an assumed electricity price of $0.15 per kWh, which you should replace with your own rate. In practice the lamp runs less in later weeks, so the real figure is usually lower.

Table 7. Energy example for 28 days of continuous use (assumed price $0.15/kWh)

A rated life of about 5,000 hours equals roughly 208 days of nonstop use, so one bulb covers several broods. The bigger saving comes from choosing the lowest effective wattage and raising the lamp on schedule, not from buying the cheapest bulb.

Troubleshooting

Table 8. Common problems

About the Manufacturer

Haining Zhongrun Lighting & Electronics Co., Ltd is based in Haining, Zhejiang, China, and develops and produces professional light sources and lighting fixtures, with a focus on infrared and UV lamps. The company's website reports more than 25 years of experience, customers in more than 60 countries and regions, more than 110 cooperation partners, and a factory covering over 20,000 square meters. Read more on the About us page. Related reading includes our guides to infrared lamp types and how to choose and the broader Zhongrun blog.

For specifications, voltage options or quotations, use the contact page, call 0086-573-87266658, or email sales@zhongrun-light.com. The address is No. 18 Changshan Road, Economic Development Zone, Haining, Zhejiang, China.

Frequently Asked Questions

What temperature should a brooder be for newly hatched chicks?

Aim for 90–95°F (32–35°C) at chick level in the first week, then lower it by about 5°F (3°C) each week, as in Table 2.

Does a red bulb heat better than a clear one?

No. Heat comes from wattage and construction. Red mainly reduces glare, which many keepers prefer.

How high should I hang the lamp?

There is no single correct height, because room temperature, wattage and brooder size all change the result. Start higher, place a thermometer at chick level, and lower the lamp in small steps until the target is reached, keeping the clearance from bedding described above.

Should I use one lamp or two?

For anything beyond a very small group in a cold space, two lamps give you redundancy. If one fails, the other still gives the chicks somewhere warm.

When can I remove the lamp?

Extension guidance says the lamp can go once the temperature under it is in the 65–70°F range, or when it matches the surrounding air. If nights are still near freezing at six weeks, keep some heat available.

Can the same lamp warm other animals?

Often yes, but targets differ by species. See our Animal Care page and the Reptile Lamp category.