We make mirror heaters for bathrooms—compact, powerful, and straight to the point. The whole idea? To wipe away condensation in a flash, without a clunky setup taking up space. Power, Voltage, and Size—Kept Real We built these heaters at 2500W because a bathroom mirror needs a burst of heat right now to fight humidity. The 400V input isn’t random; it’s a smart pick for industrial panels and commercial power runs. It lowers the current for the same wattage, so you can use smaller wires and avoid voltage drop over longer runs. And the 300mm tube? It’s a tight fit. Long enough to cover a standard mirror width evenly, but short enough to slip into those narrow housings. The Inside Story: Halogen, Coating, and Connections Inside, the halogen element sits in a quartz envelope that takes the heat and keeps output steady. On the back, a reflective coating focuses infrared energy forward toward the mirror, so less warmth gets lost in the mounting cavity. And we use R7s bases because they lock in solid, holding the load without loosening from vibration or the daily cycle of heat-up and cool-down. How It Lands in the Real World On the job, you wire it in as a direct-replacement heat source for mirror defogging setups. The tube is small, but the focused output packs serious heat density into a tiny footprint. That said, with 2500W, you’ve got to give the enclosure enough airflow and thermal room. If it runs too hot, components wear out sooner. Keep it ventilated, and it does the job—quick, clean, and dependable.