Enlighten Pro Concealed lights · Installation guide enlighten.biz/concealed-lights-install
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Installation guide

Concealed lights, installed.

Spotlights, downlights, panels and step lights, set into a false ceiling or a wall. Written for the electrician on an Indian site — print it and take it up the ladder.

See the range

Fitting magnetic track instead? CIANA 48V and CIANA Elance' 6mm each have their own guide.

Four stages, sixteen steps

  1. 1

    Plan

    Before the ceiling is boarded.

    Steps 1–4
  2. 2

    Cut the hole

    One hole, one test fit, then the rest.

    Steps 5–8
  3. 3

    Connect

    Below the ceiling, before the light goes in.

    Steps 9–12
  4. 4

    Fit and aim

    The springs do the holding. The light is pushed in, not screwed.

    Steps 13–16

Other fittings: Trimless, in the POP Semi-recessed 2 × 2 panel in a grid ceiling Rectangular lights Step and foot lights

Three rules, before anything else

  • Mains off first.Switch off the circuit's MCB at the distribution board (DB) and prove the wires dead with a tester before touching anything.
  • Mains to the driver only.Most lights arrive with the driver already plugged in. Mains (230V) goes only into the driver's input. Never connect mains to the light's own lead.
  • Before the ceiling is boarded.Fix every light position and run every wire before the false ceiling is boarded. Give the ceiling contractor the layout and each light's cutout size.
1

Stage 1 of 4 · Steps 1–4

Plan before the ceiling closes

Most concealed-light problems are decided before the first light arrives — when a false ceiling is boarded without a lighting layout.

  1. 1

    Mark every light on the layout

    Mark each position on the ceiling plan. Keep every light clear of the GI ceiling sections that carry the board: the hole must fall between two of them, never through one.

    Section through a gypsum false ceiling under an RCC slab: the cable drops from a junction box in the slab to a driver lying on the ceiling board, and the light sits in a hole between two GI sections, held by its springs
    The finished job, in section. ① The cable, from the point in the slab. ② A GI ceiling section. ③ The ceiling board. ④ The driver, lying on the board. ⑤ The connector between driver and light. ⑥ The springs, holding the light to the board.
  2. 2

    Check the depth

    The gap above the ceiling must be deeper than the light is tall — the height is on the product page — with room left above it for air.

    A concealed light in its hole: its whole body above the ceiling, height H above the board
  3. 3

    Run the wire to every point

    Bring the circuit to each position in conduit before boarding, and leave enough cable at every point to reach down through the hole and be connected below the ceiling.

  4. 4

    Trimless? Set the rings now

    A trimless ring goes into the ceiling before the POP finish. See Trimless below.

    A trimless ring's sleeve pushed up into the hole, its perforated flange against the underside of the board and fixed through its holes
2

Stage 2 of 4 · Steps 5–8

Cut the hole

One hole, one test fit, then the rest.

  1. 5

    Mark the centres

    Mark the centre of each light from the layout, and check a row of them against a straight line before any hole is cut.

    The centre marked on the ceiling, with the cutout circle drawn around it
  2. 6

    Cut to the cutout

    Round lights: a hole saw of the cutout size. Square and rectangular lights: mark the shape and cut it with a board saw. The trim is wider than the hole, so it covers the edge.

    CarefulThe cutout for every model is on its product page and in the price list. Cut one hole and fit one light before cutting the rest — springs and clips differ between models, and ceilings differ in thickness.

    A hole saw of the cutout size pressed up into the ceiling board
  3. 7

    Try one light

    Fit one complete light in the first hole and check it holds tight to the ceiling. If it is loose, or will not go in, correct the size now — not after every hole is cut.

    One complete light fitted in the first hole, its springs on the board
  4. 8

    Clear the dust

    Clean the edge of each hole and the board above it. Dust left on the board ends up on the light and the driver.

3

Stage 3 of 4 · Steps 9–12

Connect

Connect below the ceiling, where you can see what you are doing, and switch on before the light goes in.

  1. 9

    Bring the wires down

    Pull the point's wires down through the hole and find live, neutral and earth with a tester.

    CarefulBoth colour habits are in use, often in the same building. A colour is a clue, not proof: find the live wire with a tester before connecting anything.

    Wiring diagram: live, neutral and earth leave the distribution board; the switch breaks the live; live and neutral go into the driver; the driver's output reaches the light through a keyed connector; the unused earth is capped on its own
    One light, two wires. ① The switch breaks the live. ② An unused earth is capped in its own connector. ③ The driver takes the mains on one side and gives the light its DC supply on the other. ④ The light plugs into the driver.
  2. 10

    Mains into the driver

    Connect live and neutral to the driver's input through a connector or terminal block. Cap any earth on its own — see The wiring.

    CarefulThe switch must break the live (phase) wire, never the neutral.

    CarefulJoin wires in a connector or a terminal block, not by twisting them and taping them.

    The point's cable brought down through the hole; live and neutral go through a connector block to the driver, the earth is capped on its own; the driver's lead and the light's lead meet in a two-part connector with a key, shown magnified
    Mains to the input, light to the output. ① Live and neutral, joined in a connector. ② The driver. ③ The connector between driver and light — it goes together one way only. ④ Its moulded ends: they lock together one way round, and not the other.
  3. 11

    Check the light's connector

    The light joins the driver with a two-pin connector that fits one way round only. Most arrive already plugged in — check it is still pushed fully home. If it will not go together, turn it over; never force it and never cut it off.

    The two moulded halves of the connector pushed together until the joint closes, with no gap
  4. 12

    Switch on and check

    Switch the MCB back on and try the light now, at arm's length, before it disappears into the ceiling. Then switch off again at the MCB.

4

Stage 4 of 4 · Steps 13–16

Fit and aim

The springs do the holding. The light is pushed in, not screwed.

  1. 13

    Driver first

    Pass the driver up through the hole and lay it flat on the ceiling board beside the hole — not on top of the light.

    CarefulLeave the driver where it stays cool and can be reached: lying on the ceiling board beside the hole — not on top of the light, and not buried under insulation or debris.

    The driver lying on the board; the light below the hole with its springs held up
  2. 14

    Springs up, light in

    Fold wire springs up against the body — flat spring clips fold in by themselves as the light goes through. Push the light into the hole and let go: the springs open above the board and pull the trim tight to the ceiling.

    The light, its wire springs folded up, pushed up through the hole; once through, the springs swing out onto the board and hold the trim tight to the ceiling
    A: a wire spring with a coil at its pivot; its arm, shown folded up while the light goes in, rests on the board once it is through B: a flat spring clip on the side of the body, pressed flat while it passes the hole and open on the board once it is through
    Two kinds of fixing. A · a wire spring, coiled at its pivot: fold its arm up against the body before the light goes in. B · a flat spring clip: it folds in by itself as the light is pushed through. Both open above the board and hold the light tight to the ceiling.
  3. 15

    Aim adjustable lights

    Tilt and turn an adjustable light by hand once it is in, with the lights on, so you can see where the beam lands.

  4. 16

    Taking one out

    Pull the light down gently until the springs can be reached, fold them in and ease it out. The driver comes out through the same hole after it.

Other fittings

These follow the same four stages, with one difference each.

Trimless

The ring goes in before the POP

A: the ring's sleeve pushed up into the hole, its perforated flange against the underside of the board and fixed through its holes B: the POP finish laid over the flange, up to the ring's lip C: the light pushed into the ring from below, flush with the ceiling

A · before the POP finish, the ring goes up into the hole and its perforated flange is fixed to the underside of the board through its holes. B · the POP is laid over the flange — the cut-outs hold it — up to the ring's lip, and painted: the ring becomes part of the ceiling. C · the light is pushed in from below at the very end.

The light can come out again later — for a repair, or for a different light — without damaging the ceiling.

BAMBOO · FARO · ZIA · POLARIS · LUX

Semi-recessed

Less depth above the ceiling

A: a concealed light, its whole body above the ceiling, height H above the board B: a semi-recessed light, part of its body below the ceiling, needing less height H above

B · part of the light stays below the ceiling, so it needs less height (H) above it than a concealed light (A). It is cut, connected and fitted the same way.

ANDA · BAMBOO · ZOOM · BOLD · AURA

Grid ceiling

A 2 × 2 panel in place of a tile

A grid ceiling in section: one ceiling tile lifted out and set aside, the panel lowered onto the T-bars in its place, and its driver resting on the next tile

No cutting. ① Lift one tile out of the grid. ② Connect the driver, then lay the panel on the T-bars where the tile was. ③ Rest the driver on the next tile, not on the panel.

EN-DL03

Rectangular

Square to the room

Ceiling seen from below: a rectangular cutout measured the same distance from the wall at both ends

A rectangle is cut instead of a circle, to the cutout on the product page. Measure it from the wall at both ends (a = a): a rectangle a few degrees out of line shows from across the room.

OCULUS · CAECUS · UMBRA · CALIGO · ABNER · MAGIC 3835R

Step and foot lights

Prepared before the wall is plastered

A: a brick wall in section before plastering, with conduit run to the hole B: the plastered wall with the step light flush in it, at height h above the floor

A · run conduit to each position and make the hole to the cutout, at the height (h) on the lighting drawing, before the wall is plastered. B · the light goes in after the wall is finished and painted, flush with its face. Many arrive with the driver already plugged in, like the ceiling lights.

MINI · EN-SL

If something is wrong

Five checks, in the order they usually turn out to be the answer.

  • One light does not light

    Check its connector is pushed fully home, then the connections at the driver's input. To find the faulty part, swap its driver with the one from a working light beside it: if the fault moves with the driver, it is the driver.

  • Lights glow faintly or flicker when switched off

    Most often the switch is breaking the neutral instead of the live — move it to the live. A switch with an indicator lamp can also leak enough current to make LEDs glow; change it for a plain switch. Long cable runs sharing a conduit with other circuits can do the same.

  • Lights flicker when dimmed

    The dimmer and the driver do not suit each other, or the lights on the dimmer add up to less than its minimum load. Check the driver is the TRIAC version and read the minimum load on the dimmer.

  • Lights fail after a storm or a voltage surge

    A driver takes a surge up to its rating, and no further. Where the supply is unsteady or lightning is common, fit surge protection (an SPD) at the DB.

  • A light keeps failing in the same place

    Look at where its driver is. A driver lying on the light, or buried in insulation, runs hot and fails early. Move it to open board beside the hole.

A: the switch on the neutral wire; the light glows faintly while off B: the switch on the live wire
Where the switch goes. A · on the neutral: the light can still glow when it is off. B · on the live: off means off.

Still not right? Send us a photo of the light, the driver's label and the switch, and we will work it through with you on WhatsApp.

The wiring

Three things decide it: which wire is live, what happens to the earth, and how the light is controlled.

LetterWireColours you may find
LLive (phase)Red — or brown in newer wiring
NNeutralBlack — or blue in newer wiring
EEarthGreen — or green-and-yellow

The earth wire

Most of our lights

No earth terminal

Connect live and neutral only. If an earth wire is waiting at the point, do not cut it and do not join it to neutral: put it in its own connector and fold it back into the ceiling, so it is there for whatever is fitted later.

A few products

An earth lead on the light

Some higher-wattage and outdoor lights come with a third, earth lead. That lead must be connected to earth. If the point has no earth, run one from the DB before the light is fitted.

How the light is controlled

DriverWires at the pointWhat to know
On / off2 · L NAny ordinary switch on the live wire.
3-in-1 colour2 · L NWired like on / off. Switching off and on again moves the light to its next colour. There is no selector on the driver.
TRIAC dimmable2 · L NThe wall switch is replaced by a phase-cut (TRIAC) dimmer on the live wire. Fit one light and try the dimmer across its whole range before fitting the rest.
DALI-24 · L N DA DATwo more wires, the DALI pair, run from light to light to the DALI controller. The pair has no polarity: either wire can go to either DALI terminal. The automation contractor commissions the system.
Bluetooth mesh + RF2 · L NControlled from the app or the remote. Leave the wall switch on: switching it off cuts the driver, and the app loses the light.

Planning a ceiling?

Send the ceiling plan and we will come back with the positions, cutouts and drivers, listed in the order they go up.