Stop Buying Lamps Based on a Datasheet
If you’re picking out a shortwave infrared lamp just by looking at a spec sheet, you’re basically gambling with your glass. In a studio, the gap between a perfect melt and a loud, heartbreaking crack is tiny. It all comes down to how the heat actually hits the piece. That’s why we don’t just toss tubes in a box and ship them. We look at your “heat footprint.”
The problem with “off-the-shelf”
Most people start by hunting for a specific wattage or a 230V halogen tube with R7s connectors. Sure, those specs will make the lamp turn on. But they don’t tell you what happens when the light actually hits the glass. Shortwave IR goes deep. Really deep. But if the intensity is too high for the thickness of your glass, you’ll end up boiling the surface before the core even gets soft. It’s all about density. Shoving a high-wattage tube into a tiny space just creates a hotspot. You don’t want a hotspot; you want a balance.
The stuff that actually breaks
Quartz envelopes and halogen fillings are great for getting glass ready for blowing, but they take a beating. Here’s the thing: if your cooling fans aren’t up to the task, the ends of that tube are going to burn out way too fast. It’s a waste of money. We also check your wiring and connectors while we’re on-site. A loose Sk15 or R7s connection might seem like a small deal, but it creates resistance. Resistance creates heat. And that heat melts your socket. It’s a nasty cycle that kills your gear.
Solving the problem, not just selling a part
We prefer to get into the studio and see things for ourselves. Every shop is different—you’ve got different drafts, different glass types, and different rhythms. We want to see how long it takes your piece to ramp up and how it holds its temperature. If we see the edges are overheating, we might suggest a coated tube to shift the spectrum. You’ll lose a bit of raw power, yeah. But you get heat that’s spread evenly across the work. To us, that’s the difference between selling you a spare part and actually fixing the problem.