What’s really going on under the hood: power, voltage, and size
We built this heater to be a straight-shooter: a 400V, 2500W halogen tube that’s 300mm long. Why 400V? Because it keeps the current down compared to lower voltages, so your wiring stays manageable and the connections don’t feel stressed. Why 2500W? Because you get serious heat packed into a small footprint. That means you can warm a specific spot quickly, without having to overhaul the whole system. And the 300mm length? It’s a sweet spot—long enough to hold a stable hot zone, but short enough to slip into tight enclosures.
The guts: halogen element and the R7s connection
Inside, you’ve got a halogen element sealed in a quartz envelope. The magic is in the halogen cycle: it slows filament evaporation, so the output stays steady over time. You get consistent heat performance, cycle after cycle. The tube uses an R7s connector—two pins, ceramic-based, built for high temperature and high current. It clicks in with confidence, handles the expansion and contraction of thermal cycling, and makes swapping this unit in feel like a simple, reliable replacement.
Where it shines—and what to watch for
Use this heater when you need fast, focused heat: machine enclosures, preheating process air, drying components—places where you want heat to land precisely where you need it. The combo of 400V, 2500W, and the 300mm form factor gives you predictable heat placement and easy mounting. One thing to keep in mind: plan for cooling. At 2500W, you need enough airflow or proper heat sinking. If you don’t, the cabinet temperature can creep up, and that can shorten component life.
The quick facts
- Voltage: 400V
- Power: 2500W
- Length: 300mm
- Connector: R7s
- Technology: Halogen
- Envelope: Quartz