At a glance
4 ft damp-proof LED batten with an opal diffuser, 1,160 × 109 × 85 mm, IP54 and IK10. Output is set on the driver with a DIP switch in four steps: type 24136 from 11.7 to 20.1 W (1,620 to 2,740 lm), type 24158 from 15.8 to 27.3 W (2,250 to 3,800 lm), up to 141 lm/W. A replacement for old fluorescent battens with 36 W or 58 W tubes in cellars, garages, warehouses, workshops, corridors and stairwells. Housing and diffuser in impact-resistant, UV-stabilised polycarbonate, turn-lock fasteners instead of side clips, cable entry through the back, D mark. 4000 K, CRI > 80, ENEC-certified branded driver, 230 V, 3-year manufacturer's warranty. Types 24136 and 24158 in 4000 K are normally in stock; all other versions are made to order with a lead time of at least 4 weeks.
Availability: types 24136 and 24158 in 4000 K are normally in stock. The wider types 24236 and 24258 and all special versions (3000, 5000 or 6500 K, CRI > 90, DALI, motion sensor, emergency lighting) are made to order with a lead time of at least 4 weeks and available on request only: +49 221 29821660.
A batten for rooms that are damp, dusty or rough on equipment, without the look of a factory floor. The electrician decides how bright it is when installing it.
4 stepsoutput set by DIP switch, no dimmer or DALI needed
3,800 lmfrom type 24158 at 27.3 W, up to 141 lm/W
IK10withstands 20 joule impacts, polycarbonate housing and diffuser
IP54dust-protected and splash-proof, down to −25 °C
Series 24 with its flat opal diffuser. The turn-lock fasteners sit in the base plate, there are no side clips. Manufacturer image.
Output set on site
Each luminaire has a small DIP switch on its driver. It sets the LED current in four steps from 200 to 350 mA and with it the wattage. This is done once before commissioning; the luminaire then runs at that output on any standard light switch, push button or motion sensor.
The benefit shows on site: a single luminaire type can light a corridor, a cellar and a storeroom at different levels, with no dimmer, no DALI control and no extra wiring. If a room turns out too bright or too dark, the electrician changes the setting instead of the luminaire. It also means fewer different products to keep in the van.
| DIP setting (current) |
Type 24136 |
Type 24158 |
| 200 mA |
11.7 W · 1,620 lm |
15.8 W · 2,250 lm |
| 250 mA |
14.6 W · 2,000 lm |
19.5 W · 2,780 lm |
| 300 mA |
17.3 W · 2,370 lm |
23.3 W · 3,290 lm |
| 350 mA |
20.1 W · 2,740 lm |
27.3 W · 3,800 lm |
Values from the manufacturer's installation instructions (09/2025) for 4000 K. The switch positions for each setting are printed on the driver label.
Output setting on the driver, taken from the manufacturer's installation instructions.
Which setting for which room?
As a rough guide, cellars, storerooms and corridors with normal ceiling heights usually manage with the two lower settings of the 24136. Workshops, warehouses and car parks get the 24158 on one of the upper settings. If in doubt, start one step higher and turn it down after the first few days. Every lower setting saves energy, while the efficacy stays almost the same.
Replacing old fluorescent battens
Many cellars, garages and workshops still have battens with T8 tubes and magnetic ballasts. Series 24 replaces the whole fitting: no more tube, starter or choke, the LED and driver come pre-wired. The table shows which type replaces which old luminaire.
| Old luminaire |
Old system power (approx.) |
Series 24 |
New power |
| 1 × 36 W T8 |
45 W (magnetic) / 36 W (electronic) |
24136, 300 or 350 mA |
17.3–20.1 W |
| 1 × 58 W T8 |
70 W (magnetic) / 55 W (electronic) |
24158, 300 or 350 mA |
23.3–27.3 W |
| 2 × 36 W T8 |
90 W (magnetic) / 70 W (electronic) |
24236 (on request) |
up to 38.5 W |
| 2 × 58 W T8 |
140 W (magnetic) / 110 W (electronic) |
24258 (on request) |
up to 53 W |
Old system power figures are typical values for tube plus ballast. The pairing is based on the light output a batten with an opal diffuser typically delivers from a new tube. How bright a room ends up also depends on the number of luminaires, their spacing and the ceiling height.
Compared with a 1 × 58 W batten on a magnetic ballast, power drops from around 70 W to no more than 27.3 W, roughly 60 % less. In warehouses or car parks where the lights burn for many hours a day, that makes a noticeable difference to the electricity bill.
Check the length
All Series 24 types are 1,160 mm long, including those for 58 W tubes. Old battens for 36 W tubes are usually a little longer, old 58 W battens around 1.5 to 1.6 m. Where the old fitting has hung for years, the ceiling is often lighter or cleaner than around it. Measure before you swap and be prepared for an outline to remain visible. The fixing holes are 650 mm apart and rarely match the old ones. Wall plugs and screws are included.
Cable entry through the back
On many battens the cable enters through a gland in the end cap. If the supply comes out of the ceiling above the middle of the fitting, a length of cable then hangs visibly between ceiling and luminaire. On Series 24 the cable enters through the base plate, the side that sits against the ceiling or wall. The entry point is near one end of the luminaire. If the cable comes out of the ceiling further towards the middle, it runs along a channel in the back to the entry. From below, no cable is visible.
Base plate from behind: 650 mm fixing centres, cable entry 78.5 to 107 mm from the end. Drawing from the installation instructions.
Connection is via push-in terminals for 1.5 to 2.5 mm² conductors. For through-wiring, i.e. looping the supply from one luminaire to the next, a 5-pole terminal is available. Please let us know when ordering if you need it.
The luminaire can be mounted on a ceiling or a wall. According to the installation instructions it needs at least 150 mm clearance to the nearest wall or ceiling. Protection class I: connect the earth conductor. Installation must be carried out by a qualified electrician.
Turn-lock fastener with gasket: open with a screwdriver, click shut to close.
Ceiling and wall mounting with at least 150 mm clearance, from the installation instructions.
A calm shape, not an industrial look
Classic damp-proof battens have metal or plastic clips along both long sides to hold the diffuser. They work, but they look like a plant room, and plastic clips can break over time. Series 24 holds its diffuser with turn-lock fasteners set into the base plate. From the outside you see a smooth white housing and a flat opal diffuser with no visible LED dots.
That makes it suitable for places everyone sees: the corridor of an apartment block, the stairwell of a school, the entrance to a workshop, or the hallway where an old fluorescent fitting used to hang on the wall.
IP54: what the rating means
The IP rating under EN 60529 has two digits. The first describes protection against solid objects and dust, the second protection against water. In IP54, the 5 means “dust-protected”: dust cannot get in in a quantity that would affect operation or safety. The 4 means protection against splashing water from any direction.
In practice, Series 24 suits cellars, utility rooms, garages, underground car parks, warehouses, workshops, plant rooms and unheated outbuildings, including frost down to −25 °C. These rooms have dust, humid air and the occasional splash. It is not intended for areas cleaned with a hose or pressure washer, such as wash bays, livestock buildings or food processing. Those need IP65 or higher.
| Rating |
Protection against water |
Typical use |
| IP54 (this luminaire) |
splashing water from any direction |
cellar, garage, warehouse, workshop, stairwell |
| IP65 |
water jets from any direction |
wash bay, covered outdoor area, bathroom |
| IP66 |
powerful water jets |
halls with wet cleaning, agriculture |
| IP69K |
high-pressure and steam cleaning |
food processing, abattoirs, dairies |
For wet areas you will find luminaires rated IP65, IP66 and IP69K among our moisture-proof LED lights.
IK10: impact-resistant
The IK code under EN 62262 states how much impact energy an enclosure withstands. IK10 means 20 joules, equivalent to a 5 kg mass dropped from 40 cm. The housing and diffuser of Series 24 are made of impact-resistant polycarbonate, which does not shatter like glass and is UV-stabilised so that it should not turn brittle or yellow over the years.
That helps in car parks and bike stores, in warehouses with pallet trucks, in workshops and in corridors where ladders and materials are carried past. It does not make the luminaire ball-impact resistant to the German sports hall standard DIN 18032-3, which is a separate test. Please ask us about lighting for sports halls.
D mark: limited surface temperature
Series 24 carries the D mark. It identifies luminaires with a limited surface temperature to EN 60598-2-24. Such luminaires are required in locations with a fire risk, where combustible dust or fibres can settle on the luminaire, for example joinery workshops or stores holding paper, textiles, hay or straw. Whether a room counts as a fire-risk location is decided by the operator, usually with an electrician and the insurer.
What to look for when comparing
You can buy a 4 ft damp-proof batten for a lot less. The differences rarely show in the product name; they are in the data sheet. These are the points worth checking before you decide on price alone.
| Feature |
Series 24 |
What to check on other luminaires |
| Output |
four DIP switch settings, adjustable on site |
With a fixed output, the only cure for too much or too little light is a different luminaire. |
| Impact resistance |
IK10, 20 joules |
Data sheets often state IK08, which is 5 joules, or give no rating at all. |
| Fire safety |
D mark, limited surface temperature |
Without a D mark the luminaire is not intended for fire-risk locations. |
| Diffuser fixing |
turn-lock fasteners in the base plate |
Plastic side clips can break over time. |
| Cable entry |
through the back, invisible from below |
With an end-cap gland, a length of cable often remains visible. |
| Driver |
ENEC-certified branded driver, replaceable by an electrician |
If no certificate or maker is given, it is hard to tell what is inside. |
| Warranty |
3-year manufacturer's warranty |
Check whether there is a manufacturer's warranty at all, how long it runs and who provides it. |
| IP rating |
IP54: dust-protected, splash-proof |
Many low-cost battens are IP65. If you clean with water jets, IP65 or higher is the right choice, not Series 24. |
Where Series 24 belongs
Cellar and utility room
Humid air, dust and low ceilings. The 24136 on one of the lower settings is usually enough.
Garage and car park
Works down to −25 °C and is IK10 impact-resistant. The 24158 on a high setting keeps driving lanes bright.
Warehouse and workshop
Dust-protected, and with the D mark also suitable for wood and paper stores. Cable enters from behind, through-wiring possible.
Corridor and stairwell
A calm shape without side clips, for ceiling or wall. Fits where an old fluorescent batten used to hang.
Plant and boiler room
Sturdy housing, splash protection and a light level that can be matched to the room on site.
Outbuildings and barns
For unheated, dusty rooms. Where surfaces are cleaned with water, choose a luminaire rated IP65 or higher.
Damp-proof light, batten, tri-proof: what is meant?
These terms are often used interchangeably. Damp-proof or moisture-proof describes where the luminaire can go and its IP rating. Batten describes the long, narrow shape that used to hold fluorescent tubes. Tri-proof is a sales term for fittings protected against water, dust and corrosion, usually with a higher IP rating than 54. Series 24 is a long damp-proof batten for humid and dusty rooms, with built-in LEDs instead of a tube.
Versions
The two narrow types, 109 mm wide, in 4000 K are stock items. The wide types at 159 mm and all special versions are made to order by the manufacturer.
| Type |
Width |
Power |
Luminous flux |
Availability |
| 24136 |
109 mm |
11.7–20.1 W |
1,620–2,740 lm |
normally in stock |
| 24158 |
109 mm |
15.8–27.3 W |
2,250–3,800 lm |
normally in stock |
| 24236 |
159 mm |
22–38.5 W |
3,170–5,350 lm |
on request, at least 4 weeks |
| 24258 |
159 mm |
30–53 W |
4,380–7,360 lm |
on request, at least 4 weeks |
Made to order on request, also with a lead time of at least 4 weeks: colour temperature 3000, 5000 or 6500 K, CRI > 90, DALI dimming, integrated motion sensor, emergency lighting kit and an AC/DC version for central battery systems. We check with the manufacturer which option is available for which width. Call or write to us.
Dimensions: L = 1,160 mm, a = 650 mm, H = 85 mm, B = 109 mm (24136, 24158) or 159 mm (24236, 24258).
Specifications
| Power |
24136: 11.7 / 14.6 / 17.3 / 20.1 W · 24158: 15.8 / 19.5 / 23.3 / 27.3 W, set by DIP switch |
| Luminous flux |
24136: 1,620 to 2,740 lm · 24158: 2,250 to 3,800 lm (manufacturer data, 4000 K) |
| Efficacy |
24136: 135–137 lm/W · 24158: 138–141 lm/W |
| Colour temperature |
4000 K neutral white (3000, 5000, 6500 K on request) |
| Colour rendering |
CRI > 80 (CRI > 90 on request) |
| Colour tolerance |
SDCM < 3 (initial) |
| Diffuser |
flat opal polycarbonate |
| Lifetime |
50,000 h (L90B10) |
| Photobiological safety |
risk group 1 (EN 62471) |
| Energy efficiency class of light source |
C |
Light distribution from the manufacturer (cd/klm), red lengthwise, blue across the luminaire.
| Dimensions |
1,160 × 109 × 85 mm (24236/24258: 1,160 × 159 × 85 mm) |
| Fixing centres |
650 mm, wall plugs and screws included |
| Weight |
1.9 kg (159 mm wide: 2.5 kg) |
| Housing |
polycarbonate, white, impact-resistant and UV-stabilised, continuous gasket |
| Closure |
integrated turn-lock fasteners, no side clips |
| Cable entry |
through the base plate (back), near the end of the luminaire |
| Connection |
220–240 V, 50/60 Hz, push-in terminal 1.5–2.5 mm², 5-pole for through-wiring |
| Driver |
built in, ENEC-certified branded driver, output set by DIP switch |
| Ingress / impact protection |
IP54 / IK10 |
| Protection class |
I |
| Ambient temperature |
−25 to +35 °C (with emergency kit 0 to +35 °C) |
| Markings |
CE, D mark (limited surface temperature) |
| Lead time |
24136 and 24158 in 4000 K: normally in stock · all other versions: made to order, at least 4 weeks |
| Warranty |
3-year manufacturer's warranty from Licatec, in addition to your statutory rights |
| Manufacturer |
Licatec, luminaire manufacturer from Saxony, Germany, made in Europe |
| Series |
Licatec Series 24, long damp-proof batten |
| Manufacturer part numbers |
24110341MW (24136.4), 24110342MW (24158.4), 24110343MW (24236.4), 24110344MW (24258.4) |
Download the manufacturer's data sheet (PDF, German/English) · Installation instructions (PDF, German/English)
Alternatives
Moisture-proof luminaires for hose-down cleaning, agriculture and food processing.
For public areas where luminaires need to withstand deliberate damage.
For dry rooms where IP54 is not needed.
Frequently asked questions
How do I set the output?
The driver inside the luminaire has a DIP switch with four settings from 200 to 350 mA. The electrician sets it before commissioning with the power isolated. The switch positions for each setting are printed on the driver label.
Can I change the output later?
Yes. Isolate the luminaire, open the diffuser using the turn-lock fasteners, change the setting and close it again. This must be done by a qualified electrician.
Is the luminaire dimmable?
The standard version is switched, not dimmed. The DIP switch sets the basic light level. A DALI-dimmable version is available to order with a lead time of at least 4 weeks.
Which type replaces my old fluorescent batten?
Replace a 1 × 36 W fitting with type 24136 and a 1 × 58 W fitting with type 24158, each on the 300 or 350 mA setting. For 2 × 36 W and 2 × 58 W there are the wider types 24236 and 24258 on request.
Can it replace a 5 ft (150 cm) batten?
In terms of light, yes: at up to 3,800 lm the 24158 gives about as much light as a batten with a 58 W tube. But Series 24 is only 1,160 mm long. An outline may remain visible where the old fitting hung, and new fixing holes will be needed.
What does IP54 mean?
The 5 means dust-protected, the 4 means protected against splashing water from any direction. That makes the luminaire suitable for cellars, garages, warehouses and workshops. Areas with water jets or pressure washing need IP65 or higher.
Is IP54 enough for a garage or car park?
In most garages, yes: there is dust, humidity and frost, but no water jets. The luminaire works down to −25 °C. If vehicles or floors are cleaned with a hose, choose a luminaire rated IP65 or IP66.
What does IK10 mean?
IK10 is the impact rating under EN 62262 and stands for 20 joules, equivalent to 5 kg dropped from 40 cm. Housing and diffuser are made of impact-resistant polycarbonate.
Is it ball-impact resistant?
No, it has not been tested to DIN 18032-3. IK10 describes single defined impacts; ball-impact resistance is a separate test for sports halls. Please ask us about sports halls.
What does the D mark mean?
The D mark indicates a limited surface temperature to EN 60598-2-24. Such luminaires are intended for fire-risk locations where combustible dust or fibres can settle, for example joinery workshops or paper and textile stores. The operator decides whether a room is a fire-risk location.
Where does the cable enter?
Through the base plate at the back, near one end of the luminaire. If the cable comes out of the ceiling further towards the middle, it runs along a channel in the back to the entry point. No cable is visible from below.
Is through-wiring possible?
Yes, with a 5-pole terminal. Please let us know when ordering that you want to loop the supply through.
Can I mount it on a wall?
Yes. The installation instructions show ceiling and wall mounting. Keep at least 150 mm clearance to the nearest wall or ceiling.
Why does Series 24 cost more than basic damp-proof battens?
Because it has several things low-cost battens usually lack: output adjustable by DIP switch, IK10 impact resistance, a D mark for fire-risk locations, turn-lock fasteners instead of side clips, cable entry through the back, an ENEC-certified branded driver and a 3-year manufacturer's warranty. If you only need splash protection and none of the rest, a simpler luminaire will do.
What is the lead time?
Types 24136 and 24158 in 4000 K are normally in stock. All other versions are made to order with a lead time of at least 4 weeks, including the wide types, other colour temperatures, CRI > 90, DALI, motion sensor and emergency lighting.
How long is the warranty?
Licatec gives a 3-year manufacturer's warranty on Series 24. This does not affect your statutory rights. We are happy to send you the full warranty terms.
Who makes the luminaire?
Licatec, a luminaire manufacturer based in Brand-Erbisdorf in Saxony, Germany. Series 24 is made in Europe. The driver is ENEC-certified.
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