We built these infrared patio heaters for the folks who crave real, direct heat—the kind that hits you where you stand, not the warm air that just floats around. At the heart of it is a 300mm halogen tube, packing 2500W of power and running on 400V. That higher voltage is a smart move. It keeps the current lower, which means you can get away with thinner wiring and smaller overcurrent protection than you’d need with a 230V unit. It’s a lot of power packed into a small space, and that’s exactly the point. This heater is all about warming people and objects directly, not wasting energy heating the entire volume of air. Inside that quartz tube, the halogen element does its work, and the coating really matters. A reflective coating throws the infrared heat forward, so you get the output right where you aim it. The halogen cycle keeps the filament stable, too, which means the temperature stays consistent and prevents it from burning out prematurely. Then there’s the R7s connector. It’s a practical choice, plain and simple. It handles the heat at the ends, gives you a solid electrical connection, and makes swapping out the lamp a breeze. It’s a straight drop-in replacement for existing fixtures. Out in the real world, this setup gives you focused infrared heat that holds its own against the wind far better than convection heaters ever could. Of course, with 2500W at 400V, you’re dealing with serious output. So you’ve got to plan where you mount it and make sure nearby materials can handle the high surface temperatures. The control circuitry also needs to be rated for that initial surge and the steady load. Power, Voltage, and Size Here’s the thing about that 300mm length and 2500W on 400V: it concentrates a ton of energy into a compact package. The higher voltage cuts down the line current, which reduces voltage drop over distance and makes sizing your panel and conduit a little easier. The Details: Halogen, Coating, and the R7s Quartz is the perfect material here because it can handle the shock of heating up fast. The halogen gas does its part to protect the filament, and that reflective coating gives the directional heat a real boost. And the R7s ends? They make the wiring simpler and keep things reliable, even when the temperature keeps cycling. Why It Works: For Outdoor Comfort This is what you want for targeted outdoor heating—whether it’s a patio or a workstation. The direct infrared pattern warms surfaces quickly, and with the simple R7s installation, you get predictable performance you can count on.