We built this little room heater for one simple reason: how do you cram a ton of heat into a seriously tiny spot? The heart of it is a high-intensity halogen lamp. It throws off fast, focused warmth without needing all the bulk of a regular convection heater. Power, Voltage, and Size It runs on a 400V supply and hits 2500W. That combo is what lets us pack so much heat into a short 300mm tube. Seriously compact. It slips right into tight spots—like inside machinery or small enclosures where space is gold. That kind of power means it heats up fast. But it also means you’ve got to pay attention to the wiring and how you manage the heat around it. Materials and Design The lamp lives inside a quartz envelope, filled with halogen. That keeps the filament stable, so the output stays steady and the life lasts longer. We added a special coating to shield the quartz from the environment and keep it clear, so the infrared heat transfers efficiently. And the R7s connector? It’s a direct, solid-contact fit. Makes wiring straightforward and gives you a low-resistance connection that can handle repeated on-off cycles without getting shaky. What It Feels Like to Use In real life, this setup gives you quick, directional heat—perfect for warming up a process, drying a specific spot, or holding a local temperature steady. The footprint is small, and the R7s termination means it’s an easy drop-in swap. Just keep in mind: the heat is concentrated. You’ll want ventilation or cooling nearby to keep ambient temps in check and protect other components.