The most common question about a 3D-printed lamp is “won't it melt?” The honest answer: not if you use an LED bulb. The filament matters for looks; the bulbmatters for safety. Let's take both in order.
PLA is the right default
PLA is easy to print, dimensionally accurate (which matters for the printed threads), comes in the widest range of colors, and is perfectly safe next to a modern LED bulb, which runs barely warm. For the DeskLamp — clamp, arm, bolts, adapter and shade — PLA is the recommended material across the board.
The one thing PLA doesn't like is sustained heat, which is exactly why the bulb rule below exists. Skip incandescent and halogen bulbs entirely; they run hot enough to soften PLA over time.
When PETG makes sense
PETG is slightly more heat-resistant and a bit tougher. If your lamp will sit somewhere warm — a sunny windowsill, near other heat sources — PETG is a reasonable upgrade for the parts nearest the bulb (the adapter and shade). It's fussier to print and threads can be a touch more elastic, so print the free tolerance test kit in PETG first if you go that route.
The shade is where color really counts
The shade is printed in vase mode as a thin single wall, so the filament color is the light:
- White / natural PLA — the softest, most even diffusion. The safe crowd-pleaser.
- Translucent PLA — glows like frosted glass; the LED almost disappears.
- Warm tones (sand, amber) — cozy, lamp-in-a-library light.
- Dark colors — a moody, directional pool of light rather than a soft glow.
The real safety rule: use an LED bulb
This is the whole ballgame. A modern E27 LED bulb produces the light of a 60–100 W incandescent while staying cool to the touch. That's what makes a printed plastic lamp completely practical. As a bonus, LED is where the fun is: a smart, color-changing bulb turns the lamp into a smart light you can tune to any mood.
Ready to choose colors for real? The configurator uses the official Bambu Lab PLA palette with spool codes, so the color you pick is the color you can buy and print.