C-Raptile Deep Heat Projector DHP 100W Infrared Reptile Heat Lamp Bulb for Turtle, Bearded Dragon, Lizard, Leopard Gecko, Snake Review (2026)

What a deep heat projector does differently

A deep heat projector, often shortened to DHP, is built to produce infrared heat without emitting visible light, unlike a standard incandescent basking bulb. According to the product listing, this C-Raptile bulb uses a PAR30 style reflector shape with an internal reflector designed to direct far infrared energy downward toward the basking area rather than scattering it broadly, which the listing states allows it to outperform a higher wattage ceramic heat emitter or standard incandescent bulb of similar power in terms of usable heat reaching the animal. Because it produces no bright light, it can run day or night without disrupting a reptile's light cycle, which is a common reason keepers choose this bulb style for 24 hour heat sources.

Wattage and enclosure size fit

At 100 watts, this bulb sits in the middle to higher end of the DHP range, which the listing pairs with medium to large enclosures and species that includes turtles, bearded dragons, larger lizards, leopard geckos and snakes. That broad species list reflects how flexible a bulb like this can be across different setups, though the actual heat felt at the basking spot depends heavily on mounting height and enclosure size, not just the wattage printed on the box. A 100 watt DHP mounted too close to the basking surface in a small enclosure can run hotter than intended, so checking basking spot temperature with a thermometer after installation is an important step regardless of the bulb's rated wattage.

Running it safely with a thermostat

Deep heat projectors like this one do not include a built-in temperature limiter, so the listing and general reptile keeping guidance both point toward running any DHP through a thermostat rather than leaving it on a bare timer or always-on outlet. Because the bulb produces no visible light to signal when it is active, a probe-based thermostat placed at the basking spot is the more reliable way to confirm the surface temperature stays in a safe range for the species being kept, rather than judging heat output by eye. Skipping a thermostat with a projector this powerful raises the risk of overheating a basking area, especially in a smaller or well insulated PVC enclosure.

Mounting and clearance

Because DHP bulbs run hot and radiate a directional infrared beam, mounting height and clearance from decor, mesh screens or the reptile itself matters more than with a lower intensity bulb. The listing markets this bulb across a wide range of enclosure sizes, but a 100 watt unit is likely too strong for a small leopard gecko tank unless it is mounted well above the basking surface and run through a dimming thermostat to reduce output, which the general C-Raptile lineup accounts for by also offering lower wattage versions such as an 80 watt option for smaller setups. Checking the specific enclosure height against the bulb's heat throw before installing is worth doing.

Who should choose the 100 watt version

This wattage fits medium to large enclosures, such as a 40 to 120 gallon tank housing an adult bearded dragon, larger lizard or snake, where more floor and air space needs heating and a lower wattage bulb might not maintain a strong enough basking temperature. Keepers with a small tank or a heat-sensitive species like a young leopard gecko are better served by one of the lower wattage DHP options in the same product line, mounted with extra clearance and paired with a thermostat regardless of wattage chosen. Anyone new to deep heat projectors should budget for a thermostat purchase alongside the bulb rather than treating it as optional.

Frequently asked questions