Our UV Gallium Lamp for PCB Exposure: Built for One Thing—Consistent Curing
We make custom UV lamps for PCB exposure, and we put our money where our mouth is. If one of our custom lamps doesn’t deliver curing performance that matches a big-name brand at the same price, we’ll give you a full refund. Plain and simple. We’re that confident in the repeatability you’ll get on your line.
Power, Voltage, and Geometry—Why It All Matters
For PCB exposure, the lamp isn’t just “a light.” It’s a tool that shapes both heat and light. Our UV gallium lamps are built to give you a steady, predictable energy profile across the whole board. That means we match wattage to the exact spectrum you need, and we match voltage to your equipment’s electrical setup. Then there’s the geometry—tube length and diameter—designed to drop right into standard exposure frames. The 300mm active arc covers the board fully, without wasting energy on the edges. And we run the arc at high voltage, typically 400V, because that keeps things stable. Less current drift means fewer surprises and more consistent exposure, shift after shift.
Materials and Build: Quartz, Coating, and Solid Connections
At the heart of it is a high-purity quartz envelope. It handles the heat without flinching, and it transmits the UV spectrum cleanly—no unwanted absorption. We add a gallium-based coating to fine-tune the output toward the wavelengths that kickstart photopolymerization in solder masks and legend inks. And we use an R7s connector for a reason: it holds steady under high current, resists arcing, and stays put even when the fixture is loaded and unloaded again and again. The whole lamp is engineered as a true drop-in replacement, so it fits and works without a hassle.
What This Means on the Floor: Speed, Repeatability, Less Rework
In production, exposure has to be fast—and it has to be repeatable. Our UV gallium lamp hits high intensity, so exposure time drops. You get more throughput without losing edge definition. And because the arc stays stable, you see fewer rejects from under-cured boards. That’s the kind of consistency that quietly makes your day smoother. One thing to keep in mind: high-density output at 400V brings real thermal load. Make sure your fixture has the airflow and cooling it needs. We spec these lamps to meet the performance of top-tier brands, so you can upgrade your exposure process without trading away reliability.