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  • New item   LED T5 integrated linear luminaire | 4 W | 6000 K | 320 lm | 230 V | 31 cm | frosted | with switch | OPTONICA | TU4-A2-5565 | 3800156655652
    New item   LED T5 integrated linear luminaire | 4 W | 6000 K | 320 lm | 230 V | 31 cm | frosted | with switch | OPTONICA | TU4-A2-5565 | 3800156655652 1

    LED T5 integrated linear luminaire | 4 W | 6000 K | 320 lm | 230 V | 31 cm | frosted | with switch | OPTONICA | TU4-A2-5565 | 3800156655652

    Code: TU4-A2-5565
    Barcode: 3800156655652
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  • Product description

    LED T5 integrated linear luminaire | 4 W | 6000 K | 320 lm | 230 V | 31 cm | frosted | with switch | OPTONICA | TU4-A2-5565 | 3800156655652

    TU4-A2-5565 is a slim surface-mounted LED luminaire with the LEDs, driver and frosted diffuser combined in one housing. This 31 cm, 4 W model delivers 320 lm of cool white (6000 K) light and connects directly to the 230 V mains – no ballast, starter or G5 lampholders needed.

    Key point:
    The short 31 cm model is made for local light: a shelf, a niche, the inside of a wardrobe or a narrow gap in furniture. The switch on the housing lets you turn the light on locally without running a separate control cable.
    Power / flux
    4 W / 320 lm
    Length
    31 cm
    Light colour
    6000 K – cool white
    Control
    Switch on the housing

    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 TU4-A2-5565?
    320 lm from 4 W (~80 lm/W) – a 31 cm line of light with no extra components. Switch on the housing – no wall switch needed.

    Technical specifications

    Product type Integrated LED T5 linear luminaire (furniture / under-cabinet)
    Manufacturer / code OPTONICA / TU4-A2-5565
    Barcode (EAN) 3800156655652
    Series A2
    Power 4 W
    Luminous flux 320 lm
    Efficacy (calculated) ~80 lm/W · ~1030 lm/m
    Colour temperature 6000 K (cool white)
    Colour rendering CRI Ra > 80
    Beam angle 120°
    Supply voltage 230 V AC
    Length 31 cm
    Switch on housing Yes
    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.
    • 320 lm luminous flux – ~1030 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.
    • Switch on the housing – turned on locally, without a wall switch or extra cable.
    • 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 workshop owners.
    Cool white light above the workbench – small parts and markings are clearly visible.
    For warehouse supervisors.
    Lighting for shelves and aisles in dry storage rooms.
    For electricians.
    Fast installation: fix, connect, link – no extra components.

    Practical use

    If a bookshelf is 40 cm wide (~36 cm inside), the 31 cm luminaire fits with room for the cable. Mount it behind the front edge of the shelf – the source stays hidden and the light falls on the books.

    Pros

    • All-in-one – no separate driver or ballast
    • ~80 lm/W efficacy
    • Frosted diffuser, no glare
    • Colour rendering Ra > 80
    • Switch on the housing
    • 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

    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

    4 W
    320 lm
    6000 K
    31 cm
    230 V
    IP20
    With switch
    Suitable when you need:
    • Local light for a shelf, niche or inside a wardrobe
    • Bright cool light for detailed work
    • Switching on locally, without a wall switch
    Check before use:
    • Internal mounting length – at least 34 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 34 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.
    Does the switch turn off the whole linked line?
    The switch controls this luminaire, so a wall switch is more reliable for the whole line.

    LED T5 integrated linear luminaire | 4 W | 6000 K | 320 lm | 230 V | 31 cm | frosted | with switch | OPTONICA | TU4-A2-5565 | 3800156655652

    TU4-A2-5565 – integrated LED T5 luminaire: 31 cm, 4 W, 320 lm, 6000 K, 230 V, with a switch on the housing. 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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