Balcony Heater: 400V 2500W Halogen Infrared Lamp with R7s Connector
We built this halogen infrared lamp for one reason: to turn a cold balcony or patio into a cozy spot, even when space is tight and the weather is being difficult. It’s 300mm long, and it throws out serious radiant heat right where you need it.
A quick look under the hood
This lamp runs at 2500W on 400V. That higher voltage means it draws less current for the same power, so the wiring inside your heater can stay neat and slim, and the switchgear doesn’t have to be bulky. The tube is 300mm long and just 10mm across. That small size slips easily into tight reflector housings without crowding the terminals.
What it’s made of, and why it matters
The envelope is quartz, filled with halogen gas. That combo keeps the filament stable even when things get seriously hot. The lamp resists blackening and holds its output steady over its life, so you don’t get that faded, weak feel as time goes on. And the R7s double-ended connector? It makes mounting simple and keeps the contact firm. No wiggle, no loose connections—just solid pressure inside the socket, even when things vibrate or heat up and cool down.
How it feels in real life
When you fire up a balcony heater with this lamp, the warmth hits fast. It’s infrared, so it warms people and surfaces directly, instead of wasting time heating the air. That means you feel the heat almost immediately, and you don’t get those annoying drafts swirling around. Now, it does pack a lot of heat into a small space, so the housing and wiring around it need to be rated for that thermal load. But the payoff is worth it. And because it uses the R7s connector, swapping it out is straightforward. On the shop floor, that means less downtime—just pop it in, and you’re back to work.