Infrared PAR38 Heat Lamps โ Uses, Wattage, Fittings and Safety
Infrared PAR38 Heat Lamps โ Uses, Wattage, Fittings and Safety
Learn where PAR38 infrared heat lamps are appropriate, how 175W and 375W options differ, and why the holder, enclosure and clearance matter as much as the E27 base.
Quick answer: An infrared PAR38 lamp provides concentrated radiant heat, not ordinary room lighting. Use it only in a heat-rated fitting designed for the wattage and application.
What an infrared heat lamp actually does
A PAR38 heat lamp uses a reflector-shaped envelope to direct infrared radiation toward a target area. People, animals and surfaces absorb the radiation and feel warmth without waiting for the entire room air volume to heat.
The red glass reduces visible glare but does not make the lamp cool or low-powered. A 175W or 375W lamp creates substantial heat at the bulb, holder and nearby surfaces.
Typical applicationsโand their limits
- Localised warmth in poultry, livestock or animal-care environments when specified for that use.
- Reptile or pet enclosures only where the species, temperature, distance and guarding requirements have been professionally established.
- Industrial or workshop spot-heating in a purpose-built fixture.
- Food-service or process applications only when the complete equipment is approved for that task.
A heat lamp is not a universal substitute for a bathroom heater, medical therapy device or ordinary E27 globe. The base may fit while the holder, shade, wiring and enclosure are completely unsuitable for the thermal load.
175W vs 375W: what changes
| Specification | 175W PAR38 | 375W PAR38 |
|---|---|---|
| Electrical input | 0.175kW while energised | 0.375kW while energised |
| Heat intensity | Lower output for smaller/local applications | Higher output requiring greater clearance and fixture capacity |
| One-hour energy use | 0.175kWh | 0.375kWh |
| Selection basis | Target temperature, distance and environment | Target temperature, larger load and manufacturer design |
Doubling wattage does not automatically mean the target receives exactly double the useful heat. Reflector design, distance, angle, ventilation and surrounding temperature all influence the result.
Fitting and installation checks
- Confirm the holder is rated for the lamp wattage and temperature.
- Use a reflector or guard designed for heat lamps; ordinary plastic shades can deform or ignite.
- Keep combustible bedding, dust, feed, timber and fabric outside the specified clearance.
- Protect people and animals from touching the hot lamp or knocking the fitting.
- Secure the fitting mechanically and route the cable away from heat.
- Follow animal-welfare, agricultural and fire-safety requirements for the application.
The lamp surface can remain hot after switch-off. Allow it to cool before handling and replace cracked or damaged lamps immediately.
Products to consider from Whitehouse Lighting & Electrical
The products below were selected from the latest active, published and in-stock catalogue export. Availability can change, so confirm the current product page before ordering.
Flash 175W E27 Red PAR38 Infrared Bulb
The Flash 175W E27 Red PAR38 Infrared Bulb is a high-performance heat lamp engineered to deliver consistent radiant warmth across agricultural, pet care, and specialised heating applications. Its red-tinted PAR38 reflector design produces infrared heat while minimising visible light output, making it perfectly suited for poultry, reptiles, livestock, and animal enclosures. Why it fits this guide: A 175W red PAR38 E27 heat lamp listed for agricultural, pet-care and specialised radiant-heating applications.
Eurolux 375W Infrared Par38 E27
The Eurolux 375W Infrared Par38 E27 offers powerful infrared heat, perfect for industrial, commercial, and agricultural settings. Engineered to provide focused warmth efficiently, this lamp fits easily into standard E27 sockets for versatile use. Why it fits this guide: A higher-output 375W PAR38 E27 infrared lamp for industrial, commercial and agricultural localised heat.
Waco 2 Bulb Mounted Bathroom Heater
Online Only This ceiling-mounted bathroom heater combines efficient infrared heating with integrated lighting for a comfortable and well-lit environment. Designed to fit discreetly into a ceiling cut-out, it delivers instant warmth via two 275W infrared heat lamps and includes a 70W halogen bulb for illumination. Why it fits this guide: An example of a complete bathroom unit designed around specified infrared heat lamps, lighting, enclosure and ducting.
Waco 4 Bulb Mounted Bathroom Heater
Online Only The Waco 4-Bulb Bathroom Heater offers efficient, instant heating with enhanced ventilation and lighting-all in one integrated ceiling unit. Ideal for modern bathrooms, it features four high-powered infrared heat lamps, a bright halogen globe, and a built-in motor for ducted airflow. Why it fits this guide: A larger integrated ceiling system showing why heat lamps should be treated as part of purpose-designed equipment.
Buying checklist
- Identify the required target temperature and heated area.
- Confirm the complete fitting is heat-rated for the lamp wattage.
- Check clearances, guarding and mounting security.
- Verify the lamp base, voltage and reflector size.
- Do not use a cracked lamp or damaged holder.
- Obtain species-specific or process-specific advice where animals or production are involved.
Frequently asked questions
Can I put a PAR38 heat lamp in any E27 holder?
No. A matching base does not prove the holder, wiring, shade or enclosure can withstand the lampโs heat and wattage.
Is the red light harmful to animals?
Suitability depends on species, age, duration, temperature and husbandry practice. Follow veterinary or agricultural guidance rather than relying only on lamp colour.
Can I use an infrared lamp as a room heater?
It can warm a local target area, but it is not designed to distribute heat evenly through a normal room like a fan or convection heater.
How far should the lamp be from the target?
The safe and effective distance must come from the fixture and application instructions. Wattage alone is not enough to specify it.
Choose with confidence
Treat an infrared lamp as a high-temperature heating component. Match the complete fixture and application, then choose wattage only after clearance, control and guarding have been resolved.
Related reading: E27 vs B22 vs E14 vs GU10: How to Choose the Correct Light Bulb Base and Electric Heater Running Cost in South Africa โ Calculate kWh and Rand Cost
Technical references and further reading
- Eskom: Heat your home safely this winter and save lives
- NRCS Electrotechnical regulated products and compulsory specifications
- Signify Lighting Academy: Lighting theory essentials
Electrical installation and fixed-wiring work must be completed by a competent person in accordance with applicable South African requirements. Product specifications and stock can change; always confirm the current product page and manufacturer instructions.