Office Lighting in Singapore: A Practical Panel Light Guide

Quick answer: Office panel lights come in three main sizes in our range — 595×1195mm, 595×595mm, and a narrower 295×1195mm strip — and the right one usually comes down to what fits your existing ceiling grid. This guide walks through the three sizes we carry, what each suits, and what to check before you order.

1. Why office lighting is a different job from home lighting

A commercial space like an office runs on a fixed grid: false ceilings are typically built around standard tile or panel dimensions, people sit at desks for hours looking at screens, and the room needs even, glare-controlled light across the whole floor rather than a few decorative points. Flat panel lights suit that job because they sit flush in the ceiling grid and spread light evenly with minimal shadow across a wide area — which is why this guide focuses on them rather than pendants or downlights, both of which create pools of brighter and dimmer light that suit a living room far better than a desk-filled floor.

Singapore doesn’t have a single widely known consumer-facing “office lighting law” the way HDB has wiring rules, but there is an operating standard for it: SS 531 (Code of Practice for Lighting of Work Places), published by Enterprise Singapore. This is a paid standard — we could only access a preview page, not the full text, so the reference figures below are third-party summaries, not a screenshot of the original document. Treat this section as background, not a compliance checklist for your specific office.

2. A rough sense of how much light an office needs

For an office, the two numbers people actually argue about are brightness at the desk and glare on the screen. The figures below are what multiple industry sources cite as reflecting SS 531 for office work — none of them are the official document itself, so treat them as a reference point when you talk to our team or your fit-out contractor, not as a number to design against on your own.

Two things in this table are worth understanding rather than just glancing past. First, the gap between tasks — 300 lux for filing versus 750 lux for technical drawing — tracks how much fine detail the eye has to resolve: skimming a folder needs far less light than reading small print on a drawing. Second, the uniformity ratio is a different kind of measurement from brightness altogether — it’s about consistency across the floor rather than the light level at any one point. A desk lit to 500 lux next to a dim corner still fails a uniformity check, because eyes constantly adjusting between bright and dim zones as people move around the office is its own source of visual fatigue, separate from whether any single desk is “bright enough.”

For comparison, international sources (not Singapore-specific) commonly cite a broader 300–500 lux range as typical for general office work, which lines up reasonably well with the SS 531 figures above. Cross-checked via relightdepot.com / grnled.com, 2 Sep 2026 — overseas industry reference, not a Singapore standard.

Our recommendation: for a whole-floor fit-out, don’t reverse-engineer a lighting plan from the table above — these figures haven’t been verified against the SS 531 original text, and your ceiling height, room reflectance and desk layout all change the real answer. Tell our team your floor area and ceiling type and we’ll help you work out a sensible starting point.

3. Matching panel size to your ceiling — the three we carry

Rather than one panel light trying to do every job, we carry three sizes, each suited to a different part of an office fit-out. None of these is “better” — they solve different layout problems.

595×1195mm (rectangular, 92W) — the largest of the three. Luminous flux over 6720 lm (±10%), CRI 80, 3000K/4000K/6500K colour temperature options, 114° beam angle. Best suited to large open-plan floors and meeting rooms where you want fewer, higher-output fixtures covering more ceiling area. Rated UGR<22 (the page also states UGR<19) for low glare — a genuine plus for screen-heavy work. Worth unpacking those two figures separately: luminous flux (measured in lumens) is the total amount of light the fixture emits in every direction, while UGR (Unified Glare Rating) measures something quite different — how uncomfortable the fixture’s brightness is to look at directly or see reflected in a screen. A fixture can have plenty of lumens and still score badly on UGR if that light isn’t diffused properly; the lower the UGR number, the more comfortable the fixture is to work under for long stretches, which is why office specifications call it out as its own figure rather than assuming high lumens automatically means good lighting.

595×595mm (square, 45W, with a 3-tone variant also on the range) — a widely used modular ceiling size. Lower output to match the smaller size (over 3840 lm, ±10%), CRI 80, same 3000K/4000K/6500K options and UGR<22/19 glare rating as the rectangular version. CRI (Colour Rendering Index) is a separate measure again — it describes how accurately colours appear under the light compared with natural daylight, with a higher score meaning colours look closer to how they would under daylight. A CRI of 80 is the common baseline for general office and retail use; it’s high enough that skin tones, printed documents and most everyday colours look natural, without needing the higher CRI that colour-critical work like photography or design proofing would call for. If your existing grid takes this size, it’s usually the one to check first — measure your grid, and ask our team to confirm the fit before you order.

295×1195mm (narrow strip — available as a 45W panel and a 3-tone variant) — a slimmer format aimed at corridors, pantry areas and spots where a full-width panel doesn’t fit the ceiling layout. The 3-tone version’s page doesn’t publish luminous flux, efficacy or CRI figures — this is worth confirming with our team directly if that data matters for your project, rather than working from an assumed number.

There’s also a surface-mount frame available for the 595×1195mm size, for ceilings that can’t be cut into for a recessed fitting — worth asking about if your office doesn’t have a false ceiling to begin with.

Not sure which size fits your grid? Browse the range or get in touch — tell us your ceiling type and rough floor area, and we’ll point you to a sensible starting option.

4. A few things worth checking before you order

• Match the grid first. If your office already has a false ceiling with a standard tile pattern, the panel size that fits without cutting is almost always the right starting point — measure a tile before you shortlist anything. For ceilings that can’t be cut into for a recessed fitting (no false ceiling, or one you don’t want to modify), the surface-mount frame available for the 595×1195mm size sits directly against the existing ceiling instead, which is worth asking about if recessing isn’t an option.
• Glare matters more in offices than most rooms. Long hours in front of screens make UGR (glare rating) worth paying attention to, not just brightness. Both our full-spec panel ranges publish a UGR<22 (or UGR<19) rating.
• Colour temperature is a working choice, not just a look. All three sizes offer 3000K (warmer), 4000K (neutral) and 6500K (cooler, daylight-like) — cooler tends to suit focus-heavy areas, warmer suits reception or breakout spaces. There’s no single right answer; it depends on how the space is used.
• Working out how many fixtures you need is where a floor-plan conversation earns its keep. None of our panel light pages publish a coverage radius or “lights per square metre” figure, because layouts vary too much by ceiling height, room shape and desk arrangement for a general guide to answer safely on its own. Share your floor plan with our team and our light specialist will come back with a detailed assessment of your layout, including how many panels we’d recommend and where — you’re also welcome to bring measurements in to any of our showrooms and talk it through in person. See our light specialist service for how this works.

5. What to browse next

• Office panel lights — all three sizes, 595×1195mm, 595×595mm and 295×1195mm, plus the surface-mount frame option
• Browse all commercial lighting — for warehouses, floodlighting and other commercial fixture types

Fitting out a whole floor or a multi-unit project? Trade and bulk enquiries — tell us your project scope and we’ll get back to you. Need it installed as well? Request an installation quote and our team will confirm what’s needed before any work starts.

FAQ

What size office panel light do I need?
It mostly comes down to your ceiling. Measure your grid tile: if it takes the 595×595mm square panel, that’s the usual starting point. Larger open floors and meeting rooms often use the bigger 595×1195mm size to cover more area with fewer fixtures, while the narrow 295×1195mm strip suits corridors and tighter spots. See section 3 above.

Is there a Singapore standard for office lighting levels?
Yes — SS 531, published by Enterprise Singapore, covers workplace lighting including general offices. It’s a paid standard, so this guide uses third-party summaries of its commonly cited figures rather than the original text (see section 2) — treat them as a reference point, not a guarantee of compliance.

What colour temperature is best for an office?
There’s no single “best” — 4000K (neutral white) is a common default for general office areas, 6500K (cooler/daylight) suits focus-heavy tasks, and 3000K (warmer) is often used in reception or breakout areas. All three of our panel sizes offer all three options.

Why does glare (UGR) matter for office lighting?
Offices involve long hours looking at screens, so poorly controlled glare causes eye strain faster than in most other rooms. Our full-spec panel ranges are rated UGR<22 (the pages also state UGR<19), which is a low-glare design aimed at exactly this kind of use.

Written by the Lighting Hub team. Last updated: 4 September 2026