Don’t Let Your Voltage Kill Your IR Lamps
If you’ve ever worked with glass annealing, you know the drill. You need those thermal gradients just right, or you’re looking at internal stress and broken glass. But here is the real headache: the voltage. It’s not about the wattage. It’s about the power grid. If you take a lamp meant for a 110V US line and plug it into a 480V or 575V industrial circuit, it won’t just fail. It’ll pop instantly. Here is how we handle that. We don’t do “one size fits all.” We build the lamps to match whatever you’ve got on-site. Whether you’re running a small lab furnace at 110V or a massive industrial lehr at 575V, the inside of the lamp changes. For those high-voltage setups, we have to tweak the filament geometry—making the paths longer and thinner to keep the resistance in check. If that math is off, you’re either staring at a cold lamp or a blown filament. No middle ground. About the gear itself… We use high-purity quartz for the envelopes. Why? Because these things get incredibly hot to get that short-wave IR emission, and we can’t have the glass softening while it’s working. We also use halogen cycling, which basically stops the filament from wearing thin and giving up on you too soon. You’ve got a choice on the finish, too. Clear quartz is great if you need the heat to penetrate deep. But if you need to bounce that heat back toward the glass, go with the coated tubes. Just a heads-up: coated tubes run hotter on the surface. Double-check your housing clearances. You really don’t want to find out the hard way that you’ve melted your mounting brackets. Getting them into your system We designed these to be drop-in replacements. We use global standard adapters and custom windings so you can ditch those bulky, ugly step-down transformers. It cleans up your electrical footprint and, more importantly, removes one more thing that could break. One last thing. If you’re running 575V, remember that your connectors are taking a lot more stress. Make sure your wiring is actually rated for that voltage. Nobody likes seeing arcs at the terminals.