Index

Every guide, in one list

Every guide on the site, grouped by section.

Decorative and festive

Light as the decoration — length, spacing, and how it holds where you put it.

How many Christmas lights does a tree need? — length by tree size, wrap method, reading a half-dark string
Decorating the tree in layers — lights first, the five-layer order, quantities for a 1.8 m tree, the 6:3:1 colour split
Curtain lights: sizing and variants — six variants that look identical, and matching a panel to a window
Light screens: what they can display — resolution arithmetic, viewing distance, characters of text
Chaining several panels into one display — separate power per panel, and mapping order and orientation
Installing a firework light — hub loading, wall space, tail routing, and going outdoors

Placed rather than installed. Nearly every disappointment here is positioning.

Sunset lamps: distance and angle — why the room never looks like the listing photo
Star projectors: coverage and speed — two layers, ceiling coverage at your height, laser safety
Water ripple lights: placement — throw distance versus brightness, and which surfaces hold a pattern
Stair running water lights: how the step-by-step effect works — sensors, controller channels, main-line versus single-bus wiring, what to embed before plastering
Sound-activated lights — the microphone is in the controller, not in your phone
Star lights — how a galaxy projector makes its picture, three types, and which one to buy

Jobs you only want to do once. Power is the limit more often than the light is.

LED strip: power and a dim far end — what a run draws, why the controller is the real limit, where to inject
Dual-white strip: 2-wire vs 3-wire — how each mixes warm and cool, which holds its colour when dimmed, what a kelvin number promises
TV backlighting: sizing and layout — lengths for 43" to 85", three sides versus four, why adhesive lets go
Car interior ambient lighting — routing through trim, power options ranked, airbag paths, parasitic drain
Motorcycle rear lighting — what must never be obscured, vibration, wheel spray, charging headroom
Cabinet lighting — under-cabinet glare, reed switches, and driver capacity
Stair lighting — placement, and why the motion sensor triggers from the wrong place
Ceiling fan lights — why the wall switch breaks smart control, and the blade-strobe effect
Aquarium lighting — sizing, condensation, and what it will not do

Pairing, colour order, music sync and voice: the questions that follow once the light is up.

Which app controls your light? — three questions, then a table of all forty product categories
Pairing for the first time — three pre-checks, a short video per app, and reading the failure
Colours come out wrong — channel order, and the software fix most people never find
Wireless stick-on switches — a switch where you want one, and the placement rules that keep it reliable
Offline voice control — what works without a network, and why false triggers decide whether you like it
Music sync: three modes — phone library, phone microphone, controller microphone