ruby quartz jacket halogen heating lamp

June 25, 2026

Introduction

We built this ruby quartz jacket halogen lamp for engineers who need serious, focused heat in a small package. It’s all about delivering shortwave infrared energy right where you need it—think plastic processing, industrial curing, that kind of work. This isn’t a do-everything bulb. It’s a purpose-built thermal tool for machines that crave fast response and a lot of power packed into a tight space.

The Power Under the Hood

Here’s the thing: this lamp was designed to punch hard without taking up precious room in your machine. We set it at 400V, which lets us pack more wattage into a smaller footprint. The tube itself hits 2500W across a 300mm length. That setup gives you a high watt-per-inch density. In plain terms? Your target surface heats up fast. The 300mm length also gives you a tight heat zone, which makes designing the reflector and mounting bracket a whole lot simpler.

Built to Take the Heat

The quartz envelope handles the shock of rapid on-off cycling without cracking. The ruby-tinted jacket filters out visible light and lets the shortwave infrared through clean. The halogen cycle keeps the filament stable even at scorching temperatures, so output stays consistent over the life of the lamp. And the R7s base? It’s a no-fuss, two-contact design that locks the lamp in place and handles the current without needing extra adapters. It’s a straightforward, shop-floor solution that cuts down on assembly time.

Where It Shines

In jobs like PET blowing, this lamp heats the preform quickly and evenly, which helps keep wall thickness consistent and cycles under control. The shortwave output penetrates efficiently, and because the visible light is filtered, you get less glare and stray light in the work area. The compact size also means you can refit existing machines with minimal redesign.

The Trade-Off

There is one catch. With this much power packed into a small space, your machine needs proper cooling and thermal management. If you choose this lamp, make sure your reflector and ventilation are sized to handle the heat. When the system matches the output, this lamp is a drop-in workhorse.