Walk into any lighting trade show and the message is uniform: LED is the future, halogen is legacy. The message is mostly true and entirely misleading. In the general lighting categories — residential, office, commercial — LED efficiency wins outright. But in a specific band of applications, the physics of LED makes it the wrong technology, and stocking only LED means losing those sales to competitors who carry halogen.
The dividing line is heat. An oven-rated G9 capsule operates at ambient temperatures of 300–500°C. Halogen tolerates this because its quartz glass body and tungsten filament are designed for it. LED is fundamentally different: the junction temperature of an LED chip must stay below roughly 100–120°C, or the semiconductor degrades, the phosphor coating discolors, and the driver electronics fail. Put an LED module in an oven socket and you are asking it to work in an environment its materials cannot survive.
This is not a quality problem with specific LED brands — it is a materials limit of the technology. It is why virtually every oven lamp, range hood lamp and high-heat appliance lamp on the market is still halogen. When a distributor sees "LED replacement for oven lamp" products, the honest reading is that they are either over-engineered for niche fixtures or not rated for real oven temperatures.
Light quality is the second differentiator. Halogen produces a continuous spectrum with a warm color temperature around 2700–3200K, rendering reds and warm tones accurately — which matters in an oven, where bakers judge browning by sight. Halogen is also at full brightness instantly; some LED drivers introduce a visible start-up delay. In an appliance, instant-on is not a luxury, it is the expected behavior.
Lifespan claims need the same context. An LED module can indeed run 10,000–25,000 hours — in a suitable thermal environment. In an oven, that promise dies with the junction. A halogen capsule rated for 2,000 hours at 300°C is the correct specification for that environment. The comparison that matters is not "halogen hours vs LED hours" but "hours at the operating temperature of your fixture".
For distributors planning inventory, the practical conclusion is to run both lines: halogen for appliance replacement and high-heat categories (oven capsules, range hood lamps, infrared heating elements), LED for general lighting where heat is not a factor. Many buyers already do this — the ones who abandoned halogen entirely are the ones with the empty appliance-replacement shelf.
The supply-side reality reinforces this: high-temperature-rated LED modules remain niche products with premium pricing and thin availability, while oven-rated halogen capsules are commodity items made at scale by established factories. For a distributor, that means better margins and dependable supply in the appliance segment. Shunqi Lighting produces both halogen and LED lines, and our engineers will tell you honestly which technology fits your application — before you commit to a container order.