
400W Halogen Heater Tubes: Power, Design, and Industrial Application
We build 400W halogen heater tubes for engineers who need serious heat in a tiny package—something you can wire up quickly and trust to run hard, day after day. These aren’t just heat sources. They’re a complete solution, designed for tight spaces and relentless thermal demand.
Technical Deep-Dive
Here’s the beauty of a 400W tube: you get a ton of heat packed into a small footprint. It typically runs on 400V, which means lower current than a 230V design. That’s a big win. Lower current means you can use thinner wiring and put less strain on your terminal blocks. Translation? Your machine build gets simpler and cleaner. The tube length is usually around 300mm, giving you just enough radiating surface to spread the heat without blowing your equipment’s form factor.
Material & Design
Inside, you’ve got a quartz envelope filled with halogen gas. That combo keeps the filament stable at scorching temperatures and fights blackening over time. The short-wave infrared output hits your target fast, with a thermal response that’s almost instant. The R7s connector is a straight-through, double-ended design. It makes for solid contact and turns the tube into a true drop-in replacement. And the ceramic bases? They handle the thermal shock every time the tube cycles on and off.
Application & Benefits
These tubes shine in spot heating, plastic processing, and packaging—any job where you need immediate heat without waiting for a giant oven to preheat. You can focus the energy exactly where it’s needed. But let’s be real—high power density comes with a price. You have to manage the heat. Your machine’s cooling and airflow need to be up to the task, or surrounding components will take a beating. Plan accordingly.