We build bulk patio heaters for serious, industrial-level outdoor warmth, and it all comes down to one key piece: the high-output halogen quartz tube. You need heat that actually travels, right? That takes serious power packed into a compact design. Here’s the heart of it: our standard setup runs on 400V and 2500W. That punch delivers a concentrated blast of infrared energy, reaching across large, open spaces. The tube itself is 300mm long, which keeps the heat focused where you need it and makes installation a breeze, even in tight clusters. This power means you get warmth fast and steady. Just keep in mind—your wiring and control gear need to be built to handle that constant load. We fill the quartz tube with halogen to keep the filament stable, even when things get scorching. That stability means the output stays consistent over the life of the lamp. The tube also has a special coating to cut down on UV and keep it cleaner while it’s running. And for the connections, we use R7s connectors. They handle the current, lock in solid contact, and make swapping out the lamp as simple as plugging in a replacement. These tubes are made for commercial patio heater setups. The combo of 400V, 2500W, and the 300mm length gives you a reliable heat pattern that’s easy to work with. But with that concentrated power comes heat—so plan for proper ventilation and clearance to keep everything running safely.