Making PCB Fabrication Easier with Gallium Iodide Lamps
If you’re working with photoresists in PCB production, you know the struggle of getting the cure just right. Standard mercury lamps are fine, but they don’t always hit the mark. That’s where Gallium Iodide (GaI) lamps come in. They shift the light output to hit exactly where modern UV resins need it most. We build these specifically for the smaller shops. You shouldn’t have to pay a massive OEM premium just to get custom specs that actually work for your setup. The science part (kept simple) Inside these lamps is a gallium iodide filling. It pumps out a strong UV-A and UV-B light that triggers the polymerization on your copper clad laminate. Here’s the thing: we don’t believe in “one size fits all.” We tune the wattage and the length of the tube to match how fast your conveyor moves. If you’re running a high-speed line, we just crank up the power density. That way, your cure rate stays steady and you aren’t guessing if the boards are ready. Getting them installed We use high-purity quartz glass. Why? Because regular glass eats UV light, and we want every bit of that energy hitting your boards, not the lamp envelope. Installation is a breeze. We kept the footprints standard, so you don’t have to tear apart your lamp housings or rebuild your rig. They’re basically drop-in replacements. Just wire them into your existing ballast and you’re good to go. A quick heads-up on heat There is a trade-off. High-intensity UV creates a lot of heat. If your cooling fans are clogged with dust or just aren’t powerful enough, the tube temperature will spike. That’s bad news. It wears out the electrodes and kills the lamp’s lifespan. Keep an eye on your exhaust airflow—it’s the easiest way to make sure you aren’t burning through lamps faster than you need to. Why this matters for smaller shops When you’re running a mid-to-small factory, consistency is everything. GaI lamps cut down curing time compared to those old low-pressure mercury options. This means you get more boards through the door every shift. Plus, you’ll notice a sharper edge on your traces. Less resist bleed means way less scrap during the etching phase. It just makes the whole process feel smoother.