LED ceiling light

01

Size the light output and colour

ENERGY STAR's certification record for the Aosclex 'Surface mounted led ceiling light' (model LBT-3/9XDPL-18, certified 27 November 2025) lists 1,480 lumens at 18.0 W input (82.2 lm/W), selectable colour temperatures of 2700, 3000, 3500, 4000 and 5000 K, CRI 88, power factor 0.92, continuous dimming, damp-location rating, a 72,000-hour light source life and markets in the United States and Canada. The record classifies the fixture type as 'Downlight Recessed' with a 9-inch, Type IC can rating. [1]

Fansen describes its full-spectrum ceiling lights as offering natural colour rendering, flicker-free light and a slim profile for low ceilings, in round and square designs with sizes and wattages by model, and advises choosing size, wattage, CCT and controls according to room size, ceiling height and application. [2]

Editorial calculation: 1,480 lm ÷ 18 W = 82.2 lm/W, matching the record; 72,000 hours is about 8.2 years of continuous operation. [1]

Flicker is worth a measured figure, not a claim. Price and colleagues at the UK Health Security Agency, Moorfields Eye Hospital and UCL (International Journal of Environmental Research and Public Health, 2024) note that LED lighting on the UK's 50 Hz mains can show temporal light modulation at 100 Hz and above, and assessed installed classroom luminaires (LED in two schools, fluorescent in two) against the 2015 IEEE recommendations, using physiological percent flicker (PPF) with limits of 3% for low risk and 1% for no observable effect at frequencies above 90 Hz. All the modulation they measured had a 100 Hz base frequency; of the 16 luminaires tested, three (19%) met the no-observable-effect limit and one more (6%) met only the low-risk limit. The electric lights measured averaged 3000 K (range 2900–3100 K). [4]

Editorial calculation: four of 16 luminaires (25%) met even the IEEE low-risk limit, so 12 did not. Ask the supplier of a ceiling light for measured percent flicker or PPF at full output and at the lowest dimming level, with the modulation frequency, rather than a "flicker-free" label alone. [4]

Give the supplier the room type and size, ceiling height, lumens or wattage, CCT (fixed or selectable), CRI, diameter or size, humid-area rating, dimming and control method (wall switch, remote, app, voice), supply voltage, certifications and packaging.

02

Match moisture protection and controls to the room

Fansen lists anti-fog ceiling lights for bathrooms, kitchens and other humid areas with a sealed structure that reduces entry of moisture, insects and dust, and IP44 moisture-resistant options, with other protection levels confirmed by model. [2]

It lists smart full-spectrum ceiling lights controllable by app, remote, voice assistant or wall switch, with adjustable brightness and colour temperature. The certified Aosclex record likewise lists continuous dimming and tunable white light. [2] [1]

03

Check replaceability and light-source rules for Great Britain

The Ecodesign for Energy-Related Products and Energy Information (Lighting Products) Regulations 2021 (UK SI 2021/1095) apply in England, Wales and Scotland to light sources and separate control gears placed on the market from 1 October 2021, including those placed on the market in a containing product such as a ceiling luminaire (regulation 3). Regulation 6 requires makers and importers of containing products to ensure the light source and control gear can be replaced with “commonly available tools” without permanently damaging the luminaire, unless a technical justification is given in the technical documentation, and that they can be removed for market-surveillance testing. [3]

Schedule 3 also caps the light source's on-mode power by formula from its useful flux, CRI and type, with threshold efficacy η = 120 lm/W for light sources not listed elsewhere. [3] Compare these GB rules with the US-certified record and the supplier's humid-room options above. [1] [2]

Editorial calculation: the certified 1,480 lm, 18.0 W, CRI 88 fixture above runs at 82.2 lm/W. Treating its LED module as a non-directional mains light source (C = 1.08, L = 1.5 W, R = (88 + 80)/160 = 1.05), the Schedule 3 cap would be about 1.08 × (1.5 + 1,480/120) × 1.05 ≈ 15.7 W, below its 18.0 W input; the module's own Pon, not the fixture input, is what the rule tests, so ask for it.

For Great Britain, ask whether the LED module and driver are replaceable, for the replaceability statement and pictogram, and for the light source's declared Pon, CRI, Pst LM and SVM.

04

Compare what suppliers offer

The supplier linked to this page lists LED ceiling lights; its card links to the page reviewed.

Ask any supplier for measured lumens and efficacy, CCT and CRI test data, flicker data, power factor, IP rating for humid rooms, dimming and smart-control compatibility, dimensions and weight, rated life, and certifications for the target market.

05

Trace what each part does

This is a functional reference built from the sources cited; it is not one maker's specification.

06

Fill the specification fields with values for your order

An LED ceiling light quotation needs values for your rooms. The table explains each field, gives published values where a reviewed source states them, and says what to obtain from the supplier.

07

Send the room, light and control data together

Paste it into your enquiry below or into an email to a maker, then replace every bracket.

Room: [type; size; ceiling height; humid?]
Light: [lumens or W; CCT; CRI]
Fixture: [round or square; diameter; slim]
Protection: [IP44; damp-rated]
Control: [wall switch; remote; app; voice; dimming]
Certificates: [ENERGY STAR; CE; UL]

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