It is time to throw away those red and purple 'night bulbs'. A reptile's pineal gland (often called the 'third eye') senses light to regulate its internal clock. When you leave a red light on 24/7, the reptile's brain never registers that it is night time. This constant state of 'daylight' prevents the animal from entering deep, restorative sleep. A Ceramic Heat Emitter (CHE) like Fluker's completely eliminates this problem. By producing 100% invisible infrared heat, you can keep your tropical species warm through freezing winter nights while plunging the terrarium into complete, natural darkness. This promotes natural hunting behaviors in nocturnal species like Leopard Geckos and allows diurnal species like Bearded Dragons to sleep peacefully.
At BioactiveHub, reliability is our top priority when dealing with heating elements. Cheaper, off-brand ceramic bulbs are notorious for burning out within a few months or, worse, cracking down the middle and causing electrical shorts. Fluker's has a proven track record in the reptile industry for manufacturing incredibly durable porcelain elements that withstand the test of time. We use the 60W Fluker's CHE in almost all of our crested gecko setups during the winter to maintain a stable 72°F (22°C) ambient temperature at night. Because they don't emit light, they are also perfect for raising humidity; we often position a CHE directly over a water feature to gently evaporate water into the terrarium air.
Because a CHE does not emit light, it is very easy to forget that it is turned on. The surface of a 100W CHE can exceed 600°F (315°C) within minutes. RULE #1: You MUST use a fixture with a porcelain or ceramic socket (like a wire clamp lamp). A plastic socket will melt and catch fire instantly. RULE #2: You MUST plug the CHE into a thermostat (like an Inkbird). Unregulated CHEs will quickly cook a terrarium. RULE #3: If mounting the CHE inside the terrarium (like in a PVC or wooden vivarium), it must be enclosed in a sturdy wire safety cage to prevent your snake or lizard from wrapping around it and suffering catastrophic burns.
One of the best features of the Fluker's CHE is that it is virtually maintenance-free. Because there is no delicate internal filament to break, they don't blow out if you accidentally bump the lamp, unlike standard glass bulbs. The only maintenance required is occasionally wiping dust off the ceramic surface when the bulb is completely cold. ALWAYS unplug the bulb and wait at least 45 minutes before attempting to touch or unscrew it. Even after being turned off, the dense ceramic retains flesh-burning heat for a remarkably long time.

While CHEs are incredible for raising ambient night temperatures, they are not the best choice for primary daytime basking. For diurnal (day-active) basking reptiles like Bearded Dragons or Monitor lizards, a Halogen Basking Bulb is vastly superior because it provides Infrared-A and Infrared-B, which penetrate deep into the reptile's tissue to warm them efficiently. Another excellent alternative for lightless heating is a Deep Heat Projector (DHP) by Arcadia. DHPs are more expensive than CHEs but provide a slightly better, more penetrating spectrum of infrared heat.
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