This detailed comparison analyzes two popular infrared heat projectors for reptiles: the Arcadia DHP and the ProRep. Both offer competitive pricing and utilize infrared A and B wavelengths to mimic natural sunlight, promoting reptile health and natural behaviors. However, significant differences emerge in their heat output and distribution, impacting their suitability for various enclosure sizes and reptile species. This review examines packaging, lamp construction, temperature gradients, and overall performance to help reptile keepers make an informed decision.We'll explore the subtle yet crucial distinctions between these two products. From a side-by-side analysis of their packaging and construction, through practical temperature readings and observations of heat distribution, we aim to provide a clear understanding of each projector's strengths and weaknesses. This comparison will empower you to choose the ideal heat source for your reptile, ensuring optimal well-being and a thriving habitat.
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Pricing and Initial Impressions
Both the Arcadia DHP projector and the ProRep infrared heat projector are priced competitively, with slight variations depending on sales and discounts. The Arcadia DHP projector typically retails for around £19.59, while the ProRep version is around £18.26. Utilizing discount codes can further reduce the price, making them even more appealing.


Initial observations of the packaging reveal distinct branding and design elements. The ProRep packaging features a clear, concise design highlighting the product's key features. In contrast, the Arcadia packaging showcases a more comprehensive presentation with international language support, reflecting its broader market reach.


Wavelength and Naturalistic Heating
Both projectors utilize infrared A and B wavelengths, replicating the sun's natural spectrum. This approach is crucial for providing reptiles with a more natural and beneficial heating experience, promoting healthy behaviors and metabolic functions. Scientific studies have shown that naturalistic infrared lighting can positively impact reptile health and well-being.

The packaging emphasizes the naturalistic wavelengths of both products. The descriptions highlight the benefits of this approach to animal health and natural behavior. The images showcase the subtle light emitted by the lamps, emphasizing their focus on heat rather than excessive illumination.

Temperature Performance and Beam Comparison
A significant difference emerges in the temperature gradients produced by each projector. The Arcadia DHP projector produces significantly higher temperatures at closer distances compared to the ProRep version. This difference is noticeable despite both being 80-watt units. The ProRep packaging cautions against use at distances closer than 10cm, whereas the Arcadia DHP shows higher temperature readings even at this range.

The discrepancy likely stems from differences in the lamp's design and heat dispersion. The Arcadia DHP seems to project a more concentrated beam of heat, resulting in higher temperatures closer to the bulb. The ProRep projector might disperse heat more widely, offering a more even temperature distribution over a larger area.

Lamp Design and Construction
Visual inspection of the lamps themselves reveals key differences. The Arcadia DHP projector features a more robust metal mesh cage and a seemingly denser coil within the glass tube. The ProRep version exhibits a finer mesh and a visually less dense coil.

These construction differences may explain the varying heat output and distribution. The Arcadia DHP's denser coil and more substantial mesh could contribute to a more focused heat beam. The ProRep's design, with its finer mesh and perhaps less dense coil, may lead to broader heat distribution.

Temperature Testing and Results
After an hour of operation, temperature readings were taken at a distance of 30 centimeters using a heat gun. The Arcadia DHP registered a significantly higher peak temperature at 54°C directly under the bulb, but quickly dropped below 44°C within an inch. The ProRep unit showed a more consistent reading of approximately 40°C in the center, with heat still present across a wider area.

This difference highlights the narrow, concentrated beam of the Arcadia DHP and the broader distribution of the ProRep model. Both exceed the temperatures stated on their packaging. This emphasizes the importance of using a dimming thermostat with both products to maintain safe and consistent temperatures.

Conclusion and Recommendations
Both the Arcadia DHP and ProRep infrared heat projectors provide effective heating for reptiles, but their heat output and distribution differ significantly. The Arcadia DHP delivers a highly concentrated, narrow beam ideal for smaller enclosures, providing a more distinct thermal gradient. However, careful placement of the thermostat is essential due to the concentrated hot spot. For larger enclosures, the ProRep projector's wider, less intense heat distribution proves more suitable for providing a consistent basking spot across a larger surface area.
Ultimately, the best choice depends on the reptile species and enclosure size. Smaller enclosures benefit from the Arcadia DHP's concentrated heat, while larger enclosures are better served by the ProRep's broader heat distribution. In both cases, the use of a dimming thermostat is non-negotiable to avoid overheating and ensure safe and consistent heating for your reptiles.