バスルームのドアが半開きになっており、人感センサースイッチの検知エリアが廊下まで届いている様子。廊下を人が通り過ぎる際、バスルームの洗面台の照明が点灯しています。

If your bathroom occupancy switch turns on from hallway traffic, the problem is usually an open door creating a line-of-sight slice. Use a quick walk test, then aim or mask the sensor so it catches the first step in but ignores pass-bys.

露出した金属製スイッチボックスの内部に、黒い電線、白い電線、および布巻きケーブルが見えます。ボックスの縁は錆びており、周囲の壁には亀裂が入っています。

Older homes often lack a neutral in the wall box, and that wiring reality determines whether a PIR sensor switch will be stable or glitchy with LEDs. This guide explains what to check, why no-neutral switches misbehave, safer alternatives, and what to avoid.

足元を温かみのある照明で照らされたモダンな階段を女性が下りています。階段付近の壁には照明スイッチが見えます。

Make multi-location stair lighting feel like a normal 3-way using Rayzeek PIR switches. Learn placement, the one-decider principle, safe timeout tuning, and a walk-test protocol that prevents flicker and mid-stair darkness.

スイッチがオフの状態で、廊下の壁にある2つのウォールスコンスが異なる光出力を示しています。左側のスコンスは薄緑色に微光しており、右側のスコンスは残留光による小さな明るい点があるのみで、適切に消灯しているように見えます。

LEDs that glow when off, flicker at timeout, or shut off “randomly” usually aren’t a bad switch. This field guide shows how to name the symptom, run one-change tests, and match the fix to drivers, heat, load, or false triggers.

男性がノートパソコンを置いて会議テーブルに座っており、壁掛けディスプレイには複数人のビデオ通話が表示されています。室内は薄暗く、ウィンドウシェード越しに日光が差し込んでいます。

Conference rooms can pass a walk test and still go dark mid-call when people sit still. Learn a practical control contract—often vacancy mode—plus validation steps for seated presence, sensor placement, and timeouts that keep video meetings reliable without making rooms always-on.

カーテンの開口部、ベンチ、額入りミラーを備えた店舗のフィッティングルーム。出入口の上部には、小さなインジケーターランプが付いた天井取り付け型人感センサーが見えます。

Fitting rooms fail in two ways: lights that shut off mid-change or never shut off at all. Learn a practical trigger-hold-release approach, plus a 10-minute per-room checklist and humane settings that prevent both outcomes.

Cutaway diagram of a laundry closet with louvered bifold doors and a wall PIR sensor sending detection beams toward a stacked washer and dryer and a person folding clothes. Labels show how the door slats break up infrared patterns and contribute to false triggers and missed stationary motion.

Louvered bifold doors can make a PIR sensor “see” hallway motion and airflow, causing false-ons and mid-task shut-offs. Learn a durable fix order: re-aim or relocate, mask the hallway sector, use vacancy mode, then fine-tune settings with real walk-tests.

A garage interior shows a ceiling-mounted motion sensor with a red detection grid overlaying a parked car and the floor. Sun stripes cross the concrete, and graphic overlays indicate heat emissions and air currents as potential trigger sources.

Garage PIR switches often aren’t broken—they’re reacting to sun stripes, hot car cool-down, and door-plane temperature swings. Fix false triggers by changing the sensor’s view first, then fine-tuning settings and adding daylight gating.

A split-level staircase diagram shows multiple motion sensors with orange detection cones covering the bottom stairs, landing zone, and top stairs. Labels indicate wiring in parallel and highlight the crucial landing area.

Split-level stair landings often cause motion lights to snap off and on because of short timeouts and poor line-of-sight during the pivot. Learn how to fix landing strobe by adjusting hold time, aiming for cross-traffic, and designing multi-location controls correctly.

A dim bedroom shows a person in pajamas near the bed while a cat lies on the rug. A ceiling sensor labeled vacancy mode and a phone-style overlay display 12:17 a.m.

Bedroom motion lights fail when they surprise you at night. Vacancy mode keeps bedrooms manual-on for consent, while safety comes from a dim, warm, predictable path from bed to hall to bathroom.

Japanese