Violet UVB Bolb S3535 LED Strip 295nm 12 LEDs 1800mW 28.1cm 26V 27W for disinfection

Violet UVB LED Strip 295 nm, 1800 mW, 12 Bolb S3535-H LEDs, 1050 mA, 27 W, 28.1 cm

The Violet UVB 295 nm is a 281 mm rigid UV-B LED strip with 12 Bolb S3535-H LEDs, delivering a radiant power of 1800 mW at 295 nm with 27 W of power consumption, a radiant efficiency of about 6.7%. As part of the Violet modular UV irradiation system, its LED pitch is matched to the LEDiL VIOLET-12X1 optics, so it can be configured for narrow, wide or oval beams and engineered for a defined UV dose in horticulture and curing.

Features of the Violet UVB 295 nm LED Strip

• 12 Bolb S3535-H UV LEDs, UV-B 295 nm
• Radiant power 1800 mW (up to 2200 mW at 1500 mA)
• Constant current 1050 mA at 26 V, 27 W, dimmable
• Beam angle 70° without optics
• Fixed LED pitch matched to LEDiL VIOLET-12X1 optics
• Dimensions: 281 x 19.2 x 4 mm
• Lifetime of 12,000 hours (L80B10)
• Made in Germany
• 1-year warranty

Applications of the Violet UVB 295 nm LED Strip

Combined with VIOLET-12X1 optics, a housing and a suitable driver, the Violet UVB 295 nm is designed for the following main applications:

• Horticulture: supplemental UV-B: Low, precisely controlled doses of UV-B at 295 nm trigger the natural UV response of plants: more flavonoids and anthocyanins for color, flavor and nutritional value, more compact growth and stronger natural defenses. In greenhouses and vertical farms, UV-B treatments supplement the daylight or LED grow light spectrum, for example in strawberry cultivation, where UV-B treatments are used to help control powdery mildew. The dose must be tuned to the crop, because too much UV-B damages leaves. Read more about strawberry cultivation with LED grow lights.
• Curing: UV-B radiation supports the curing of UV adhesives, coatings and resins whose photoinitiators absorb in the short-wave UV range, alone or combined with UVA sources; the LED switches on instantly and emits no infrared heat onto the workpiece. See light for curing.

Violet Modular UV Irradiation System: 265 to 330 nm

The Violet UV irradiation platform is a modular system for building compact, precisely controlled UV light sources from 265 nm UV-C to 330 nm UV-A. At the heart of the system is our 281 mm Violet LED strip. Each board carries 12 UV LEDs positioned at a fixed pitch specifically matched to the LEDiL VIOLET-12X1 optics family. This allows the same LED platform to be configured with narrow, wide or oval beam distributions, depending on the required irradiation area, working distance and target geometry.

Instead of designing a UV fixture around a generic LED board, the Violet platform combines the LED source, optics, thermal and mechanical housing and driver electronics into a coordinated system. The result is a practical starting point for applications where UV wavelength, irradiance, beam geometry and dose must be engineered rather than simply approximated. The system can be purchased at different levels of integration: from the bare LED strip and optic through to a complete assembled UV irradiation fixture.

A Modular Platform Built Around a 281 mm UV LED Strip

Every Violet strip uses the same basic mechanical platform:

• 281 mm LED board length
• 12 UV LEDs
• Fixed LED pitch matched to LEDiL VIOLET-12X1 optics
• Multiple UVA, UVB and UVC wavelengths
• Constant current operation
• Compatible mechanical housing available
• Different driver and dimming architectures
• IP67 optical configurations possible with suitable VIOLET-12X1 components

Because the LED positions and optic geometry are defined, we can use the LED radiant output, the selected optic and the working distance as inputs when calculating the expected irradiation pattern at the target surface. This is particularly useful when designing equipment where a specific UV dose or irradiation area is required.

LEDiL VIOLET-12X1 Optics for the Violet UV Strip

The 12 LEDs of the strip sit exactly under the 12 lens elements of the LEDiL VIOLET-12X1 optics, which are made of UV-rated materials that stay transparent and do not yellow under UV-B and UV-C radiation, unlike standard PMMA lenses. Choose the beam that matches the irradiation area and working distance:

• LEDiL FN17810_VIOLET-12X1-RS: narrow beam of 14°, IP67 (SKU 37454)
• LEDiL FN17294_VIOLET-12X1-S: 20° to 40° depending on the LED, UV-resistant silicone in a stainless steel frame, IP67 (SKU 36480)
• LEDiL FN17818_VIOLET-12X1-W: wide beam of 50° to 65° (SKU 37455)
• LEDiL FN18590_VIOLET-12X1-O: oval beam of 52 x 12°, for long, narrow targets such as conveyor belts (SKU 42076)

The optics are designed and simulated for this LED footprint, and photometric data is available, so the irradiance on the target can be calculated before the first prototype is built.

Technical Data of the Violet UVB 295 nm LED Strip

• Article number (SKU): 43303
• LED: Bolb S3535-H
• Number of LEDs: 12
• Peak wavelength: 295 nm (UV-B)
• Radiant power: 1800 mW (typical), max. 2200 mW
• Radiant efficiency: about 6.7% (calculated)
• Beam angle: 70° (FWHM, without optics)
• Lifetime: 12,000 h (L80B10C1)
• Operating mode: Constant current, dimmable
• Operating point: 1050 mA at 26 V (max. 1500 mA)
• Power: 27 W
• Dimensions: 281 x 19.2 x 4 mm
• Weight: 18.4 g
• Operating temperature at Tc: -40°C to +65°C
• Ambient temperature: -40°C to +50°C
• Storage temperature: -40°C to +100°C
• Photobiological safety (EN 62471): Risk group RG3
• Certifications: CE, RoHS, REACH

Installation, Operation and Safety

• Cooling: always mount the strip on an adequate heat sink or the compatible Violet housing and make sure the Tc point stays below +65°C. UV LEDs are considerably more sensitive to temperature than white LEDs: their radiant output and lifetime fall as the junction temperature rises, so the thermal design must be verified in the final application.
• LED driver: operate the strip with a constant current LED driver set to 1050 mA (maximum 1500 mA); never connect it directly to a constant voltage supply. Connect it only according to the marked terminals.
• Optical radiation safety: the strip emits intense UV-B radiation and is classified in risk group RG3 (EN 62471), the highest risk group. Never look into the operating strip and protect skin and eyes from direct and reflected radiation. The complete product must provide the shielding, access control, interlocks, warning labels and procedures required for the wavelength and application, and the national regulations on artificial optical radiation at the workplace must be observed.
• Materials: UV radiation degrades many plastics; use only UV-resistant materials and optics in the irradiation path, such as the LEDiL VIOLET-12X1 optics.
• Professional use: the strip is a component for integration by qualified personnel into professional and industrial equipment.

UV LEDs from Bolb

Bolb Inc. is a US-based specialist in deep-ultraviolet LEDs that develops its own AlGaN semiconductor structures and concentrates on the UV-B and UV-C range, where wall-plug efficiency and documented radiant power matter most. For UV applications, a branded LED with documented radiant power and degradation behavior is essential: it lets you design an irradiation system for a defined dose and service interval, instead of relying on a nominal wavelength alone.

Who We Are: Ledrise, Professional LED Strips Made in Germany

Ledrise is the international online shop for high-performance LED strips and modules that we develop and manufacture in our own production facility in Germany and ship directly from there. With more than 20 years of experience in LED technology, our team of more than 70 people in Germany, Hong Kong and Romania has gained extensive application knowledge across many sectors, and thousands of business customers and consumers on five continents rely on us as their LED technology partner.

We use only LEDs from market leaders such as Nichia, Seoul Semiconductor, Cree, Samsung and ams OSRAM. Beyond standard products, we design and prototype custom LED modules, select and integrate optics, housings and drivers, and test and validate every solution in our in-house measuring and testing laboratory, supporting you from the first lighting concept to serial production.

Our Quality Promise

• Certified quality: our quality management is certified to DIN EN ISO 9001 and covers every step, from product development to customer service. Our manufacturing center in Germany is also certified to ISO 14001 for environmental management and ISO 45001 for occupational health and safety.
• Reel-to-reel manufacturing, unique in Europe: our fully automated reel-to-reel flex line uses plasma direct metallization to produce robust, flexible circuit boards in continuous lengths of up to 100 meters, with fewer interconnections and less material waste.
• Precision at every step: automated solder paste printing with inline inspection, high-speed ASM SIPLACE component placement, controlled reflow soldering, and automatic optical inspection that detects missing, offset or misaligned components.
• Full traceability: production batches are marked and tracked with laser-engraved barcodes.
• Honest data: the performance values in our datasheets match those in real-world applications.
• Long-term security: a 1-year warranty on this UV LED strip (see our warranty terms) and professional support for your lighting projects.

Learn more about Ledrise and our reel-to-reel flexible LED strip manufacturing in Germany.