We built this IP65 waterproof electric heater for one simple reason: to bring serious warmth to damp spots—like your bathroom—without ever making you choose between comfort and safety. At its heart is an infrared heating lamp, wrapped in a quartz envelope and designed to throw off heat without glare. Power, voltage, and the nitty-gritty We set this up to run on standard voltages, including 400V, so it can plug right into industrial power without extra hassle. And the output? It’s big. A compact 300mm tube delivers 2500W—a ton of heat in a small footprint. That’s powerful, but it does mean you need to plan for the heat. The IP65 rating isn’t optional. The sealed housing keeps water jets out, so the inside stays protected. Materials and design: warmth that feels good We chose a quartz tube because it handles the shock of heating up fast and cooling down again. Inside, a halogen element does the work. Then there’s the coating and spectrum. We put a filtering layer on the lamp that shapes the light, cutting the harsh blue tones that strain eyes. The result is a gentle, warm glow that warms your skin while being easy on your vision. And the R7s connector? It’s tough—built to handle high current and high temperatures—and it makes the lamp a simple, drop-in swap on the assembly line. How it performs in real life In a bathroom, that IP65 protection means it can handle steam and splashes without blinking. The infrared heat warms your body directly, not the air around you. So you feel the warmth quickly, and you don’t waste energy heating empty space. Reliability is built in. The quartz envelope stands up to thermal stress, and the connectors stay tight even when things vibrate. One thing to keep in mind: that 2500W output needs proper cooling. Plan the enclosure to manage ambient heat, and you’re set. For engineers, it’s straightforward to install—and it’s built to keep running hard, even in wet conditions.