We build 400V halogen IR lamps for engineers who need serious heat in a tight space. These aren’t your run-of-the-mill bulbs. They’re industrial heaters, built around a quartz envelope, a halogen cycle, and a voltage that changes how you wire the whole setup. Here’s the thing about running at 400V: it lets us pack a lot of wattage into a short, 300mm tube without pulling massive current. That means you can use smaller wiring and keep your control gear neat and compact. The payoff is intense heat right where you need it. It warms up fast, and the hot zone stays tight. But there’s a trade-off. You have to match the supply voltage exactly, and your thermal design has to handle the heat so the reflector and nearby parts don’t fry. The quartz envelope takes the shock of repeated on/off cycles and lets short-wave IR shine through cleanly. Inside, the halogen cycle keeps the filament from blackening, which means the output stays steady and the lifespan beats standard incandescents. The R7s double-ended cap gives you a solid, no-fuss mechanical hold and straightforward wiring in linear fixtures. And when it’s time to replace one? It’s a simple drop-in. No drama. These lamps are made for processes that need fast, focused heating—plastic forming, sealing, coating drying, component curing. The 400V halogen IR package gives you controllable, line-of-sight heat with almost no warm-up lag. You get predictable temperature profiles, steady output over the service life, and a form factor that’s easy to service. Just remember to plan your mounting clearances and make sure the surrounding assembly has proper cooling.