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  • New item   LED T5 integrated linear luminaire | 8 W | 4000 K | 640 lm | 230 V | 57 cm | frosted | OPTONICA | TU8-A1-5554 | 3800156655546
    New item   LED T5 integrated linear luminaire | 8 W | 4000 K | 640 lm | 230 V | 57 cm | frosted | OPTONICA | TU8-A1-5554 | 3800156655546 1

    LED T5 integrated linear luminaire | 8 W | 4000 K | 640 lm | 230 V | 57 cm | frosted | OPTONICA | TU8-A1-5554 | 3800156655546

    Code: TU8-A1-5554
    Barcode: 3800156655546
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  • Product description

    LED T5 integrated linear luminaire | 8 W | 4000 K | 640 lm | 230 V | 57 cm | frosted | OPTONICA | TU8-A1-5554 | 3800156655546

    TU8-A1-5554 is a slim surface-mounted LED luminaire with the LEDs, driver and frosted diffuser combined in one housing. This 57 cm, 8 W model delivers 640 lm of neutral white (4000 K) light and connects directly to the 230 V mains – no ballast, starter or G5 lampholders needed.

    Key point:
    57 cm is a medium length for wider shelves, display cases and cabinets with an internal width of at least 60 cm. The model without a switch is controlled by a wall switch, motion sensor or smart relay – the whole line switches on together.
    Power / flux
    8 W / 640 lm
    Length
    57 cm
    Light colour
    4000 K – neutral white
    Control
    External switch or sensor

    How it works

    The luminaire is fixed to a surface – the underside of a cabinet, a shelf, a wall or a ceiling – and connected to 230 V AC. The integrated driver converts mains voltage into the current the LEDs need, so no additional ballasts or transformers are required.

    The frosted diffuser spreads the light at a 120° beam angle and reduces glare: mounted under a cabinet, it lights the worktop evenly without bright spots. A colour rendering index of Ra > 80 shows food, materials and paint colours naturally.

    Distributor catalogues list the A1 / A2 series luminaires as linkable into a continuous line. The manufacturer does not publish the maximum number of linked units or total power, so it is worth agreeing a longer line in advance.

    Why choose TU8-A1-5554?
    640 lm from 8 W (~80 lm/W) – a 57 cm line of light with no extra components. No switch – convenient for controlling several luminaires from one wall switch or sensor.

    Technical specifications

    Product type Integrated LED T5 linear luminaire (furniture / under-cabinet)
    Manufacturer / code OPTONICA / TU8-A1-5554
    Barcode (EAN) 3800156655546
    Series A1
    Power 8 W
    Luminous flux 640 lm
    Efficacy (calculated) ~80 lm/W · ~1120 lm/m
    Colour temperature 4000 K (neutral white)
    Colour rendering CRI Ra > 80
    Beam angle 120°
    Supply voltage 230 V AC
    Length 57 cm
    Switch on housing No
    Linking Linkable with luminaires of the same series
    Diffuser Frosted
    Housing material Plastic
    Protection rating IP20 (dry rooms only)
    Mounting Surface – under a cabinet, on a shelf, wall or ceiling
    Dimming Not specified – treat as non-dimmable

    Main functions

    • Integrated driver – connects directly to 230 V, no ballast, starter or transformer needed.
    • 640 lm luminous flux – ~1120 lm per metre of length, enough to light a worktop or shelf.
    • Frosted diffuser, 120° – even light without glaring spots.
    • Ra > 80 – natural colours of food and materials.
    • External control – a wall switch, motion sensor or smart relay switches the whole line together.
    • Linkable line – several luminaires of the same series form one line with a single supply point.

    Where is it used?

    • Kitchen worktop under wall cabinets
    • Shelves, bookcases and display cases
    • Inside wardrobes, closets and niches
    • Workshop benches, storerooms, dry garages
    • Office furniture, counters and product shelves
    • Accent lighting in dry corridors and stairwells

    Use by need

    For kitchen installers.
    Neutral light for the worktop under the cabinets – food and knives are clearly visible.
    For furniture makers.
    The slim housing fits under a cabinet base, the driver is already built in.
    For office managers.
    Extra light for workstations, cupboards and archive shelves.

    Practical use

    If a cabinet is 80 cm wide (~76 cm inside), the 57 cm luminaire fits with room for the cable. For two adjacent cabinets, fit one luminaire under each and link them – the line will light evenly.

    Pros

    • All-in-one – no separate driver or ballast
    • ~80 lm/W efficacy
    • Frosted diffuser, no glare
    • Colour rendering Ra > 80
    • Easy to control with a switch or sensor
    • Linkable into a continuous line
    • Several lengths and colours in the same series

    Cons / limitations

    • IP20 – dry rooms only
    • Dimming not specified – do not use with a dimmer
    • LEDs cannot be replaced – if it fails, the whole luminaire is replaced
    • Maximum number of linked luminaires not published
    • Does not fit a standard 60 cm cabinet (~56 cm inside) – choose the 31–32.5 cm model there

    Safety and installation notes

    • Before installation, switch off the circuit at the panel and check that no voltage is present.
    • Do not install in bathrooms, in the splash zone above a sink, outdoors or in damp rooms.
    • Do not install directly above a cooker or oven – plastic housing, heat and grease vapour.
    • Do not connect to a dimmer.
    • Route the cable so that it cannot be pinched by doors or shelves.
    • Connection to a fixed electrical installation must be carried out by a qualified electrician.

    Quick selection guide

    8 W
    640 lm
    4000 K
    57 cm
    230 V
    IP20
    Without switch
    Suitable when you need:
    • Light for a wider shelf, display case or 80 cm cabinet
    • Natural light for work and the kitchen
    • Control by a wall switch or sensor
    Check before use:
    • Internal mounting length – at least 60 cm (including room for the cable)
    • The room is dry, the luminaire is away from water and heat
    • Where the 230 V supply point will be
    • For the whole line – luminaires of the same series and the same K
    Important reminder: This is not an LED T5 (G5) tube – it does not fit an old fluorescent luminaire. To keep an old housing, choose an LED T5 tube with a G5 base.

    FAQ

    Can it replace an old T5 fluorescent tube?
    No – it is a complete luminaire with an integrated driver and has no G5 pins.
    Will it fit my cabinet?
    Yes, if the internal width between the side panels is at least 60 cm.
    Can it be connected to a dimmer?
    No – dimming is not specified, and with a dimmer the luminaire may flicker or fail.
    Can several luminaires be linked?
    Yes, A1 / A2 series luminaires link into a line; for lines longer than 3–4 units, check the permitted power with us.
    Is it suitable for a bathroom or outdoor canopy?
    No – IP20 offers no protection against water; the luminaire is for dry rooms only.
    How do I switch on a luminaire without a switch?
    Via a wall switch, motion sensor or smart relay installed in the circuit before the luminaire.

    LED T5 integrated linear luminaire | 8 W | 4000 K | 640 lm | 230 V | 57 cm | frosted | OPTONICA | TU8-A1-5554 | 3800156655546

    TU8-A1-5554 – integrated LED T5 luminaire: 57 cm, 8 W, 640 lm, 4000 K, 230 V. Mounted under kitchen cabinets, on shelves and in workshops, linkable into a continuous line.

    Published: 2026-10-30 · Data checked against manufacturer and supplier data: 2026-10-30

    Illustrative image may have been created using AI. The appearance of the product may differ slightly from the image shown. Please refer to the technical specification.

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