Asteria Long Monochrome Wall Lamp: Installation Tips
By Danish Design Lighting & Furniture – UMAGE US | Published: 2026-10-30
Category: How-to Guides
Learn how to install your Asteria Long Monochrome wall lamp with clear, step-by-step instructions. Avoid common mistakes and get the perfect wall lighting setup.
Quick Answer
To install the Asteria Long Monochrome wall lamp, first turn off power at the circuit breaker, then mount the bracket securely to the wall, connect the wires, and attach the lamp head. The lamp's adjustable arm and dimmable button require careful alignment during installation.
Before You Start: What Makes This Lamp Different
The Asteria Long wall lamp is dimmable via a discreet button on the lamp's screen, and its long arm can move from side to side. These features mean you need to plan the mounting height and orientation carefully so the arm has full range of motion and the button is easily accessible.
Because the lamp is designed with great attention to detail, the mounting bracket must be perfectly level. A slight tilt will be more noticeable on a long arm than on a fixed lamp.
Installation Steps
- 1. Turn Off Power and Prepare Tools: Switch off the circuit breaker for the room where you'll install the lamp. Use a voltage tester to confirm no power is flowing. Gather a screwdriver, drill, level, pencil, wire strippers, and wall anchors if needed. Never rely on the wall switch alone — always cut power at the breaker.
- 2. Mark and Drill Mounting Holes: Hold the mounting bracket against the wall at your desired height (typically 60–66 inches from the floor). Use a level to ensure it's straight, then mark the screw holes through the bracket. Drill pilot holes and insert wall anchors if you're not drilling into a stud. Double-check the level before drilling — a crooked bracket will make the long arm look off-center.
- 3. Secure the Mounting Bracket: Attach the bracket to the wall using the provided screws. Tighten firmly but avoid over-tightening, which could strip the drywall or plaster. If the bracket feels loose, use larger anchors or move to a stud location.
- 4. Connect the Wires: Match the lamp wires to the house wires: black (hot) to black, white (neutral) to white, and green or bare copper (ground) to the ground wire or bracket grounding screw. Use wire nuts and wrap with electrical tape for a secure connection. Make sure no bare wire is exposed outside the wire nut — this prevents short circuits.
- 5. Attach the Lamp Head and Adjust: Gently fit the lamp head onto the bracket and secure it with the provided screws. The Asteria Long's arm should move freely from side to side. Test the dimmable button to ensure it's responsive. If the arm feels stiff, loosen the adjustment screw slightly — do not force it.
- 6. Restore Power and Test: Turn the circuit breaker back on. Use the dimmable button to cycle through brightness levels and verify the arm's range of motion. If the lamp flickers, turn off power and check wire connections. Flickering usually means a loose wire connection — recheck step 4.
Product Facts
- Asteria Long Monochrome | wall lamp: The Asteria wall lamp is dimmable, controlled by a discreet button on the lamp's screen. The Asteria Long version can move from side to side, providing enhanced functionality. You need to mount the lamp so the button is reachable and the arm can swing without hitting the wall or nearby objects.

Asteria Long Monochrome | wall lamp
