Why we torture our infrared heaters with “Damp Heat” tests
When we design infrared lamps for bathrooms or patios, we assume the worst. We assume they’ll be blasted with steam, splashed with water, and left in the dampest corners of a house. If a seal gives way or a quartz tube gets a tiny, invisible crack, the lamp is toast. It won’t last a week. That’s why a simple splash test isn’t enough for us. We don’t just check if they can handle a few drops; we put every single batch through a “damp heat” aging process. The vacuum effect Here is the thing about bathrooms: the temperature swings are wild. One minute the lamp is scorching hot, and the next, it’s cooling down fast. That rapid change creates a vacuum. If the housing isn’t tight, it literally sucks moist air straight into the electrical terminals. To stop that, we lock our units in chambers with 95% humidity at 40°C for hundreds of hours. We want to see if those seals actually hold up after they’ve expanded and contracted a thousand times. The battle against rust Water and connectors just don’t get along. Whether we’re using R7s or custom pins, oxidation starts the second moisture touches the metal. It’s a nasty cycle. Oxidation creates resistance, and resistance creates heat. Eventually, the contact point gets so hot it melts the socket. By forcing this corrosion to happen quickly in the lab, we find the weak spots. If a lamp fails, we go back to the drawing board and fix the gasket material or the plating on the pins. Finding the sweet spot But there’s a catch. If we make the casing completely airtight to beat the moisture, we trap the heat inside. If it’s too sealed, the internals will basically cook themselves during a long session. It’s a balancing act. We have to get the IP rating right while still letting the unit breathe. We obsess over these specs so the lamp stays dry without burning out its own wiring. We’ll give you the data on all of this, so you know exactly how these things hold up in the real world.