Three-Wavelength UV Lamp

LELMS-38L UV Lamp - Three Wavelengths in a Compact Package

The LELMS-38L Three-Wavelength UV Lamp integrates 254nm, 302nm, and 365nm in a single compact unit, delivering uniform, high-intensity ultraviolet output for a wide range of scientific and industrial applications.

Each wavelength is controlled by an independent switch, allowing for single-wavelength operation or simultaneous multi-wavelength activation as needed. Built-in reflector surfaces optimize light convergence and enhance irradiation intensity, while the rugged, lightweight housing ensures durability and portability. Excellent for both handheld and stationary use with an optional lamp stand.

Figure 1: Three-Wavelength UV Lamp LELMS-38L is ergonomically designed for both handheld and stationary use.

Key Features

Triple-Wavelength Integration – Combines 254nm, 302nm, and 365nm UV sources in a single compact unit, eliminating the need for multiple lamps.

Independent Wavelength Control – Each wavelength is operated by its own switch, allowing for solo, paired, or full-spectrum activation.

High-Intensity Output – Built-in reflector surfaces focus and amplify UV light, delivering superior irradiance and uniform illumination across the target area.

Lightweight & Portable – Weighs significantly less than conventional multi-lamp systems, facilitating easy handheld operation and transport.

Rugged Durability – Constructed with a robust housing that resists wear and impact, ensuring long-term reliability in demanding lab or industrial environments.

Versatile Mounting Options – Performs exceptionally well in handheld mode and can be securely fixed with an optional lamp stand for stationary applications.

Technical Data

Wavelength: 365nm, 302nm, and 254nm

Light Souce: 3 x 8w UV tubes

Filter: Black filter for enhanced contrast

Control: Independent switch for each wavelength

Power Supply: Available in 110V or 220V versions

Power Cord Length: 2.5 m (8.2 ft)

Dimension: 330 x 100 x 80 mm (13.0 x 3.9 x 3.1 in)

Optional lamp stand available for stationary use

Figure 2: LUYOR Three-Wavelength UV Lamp LELMS-38L has a rugged and lightweight housing.

Figure 3: LUYOR Three-Wavelength UV Lamp LELMS-38L has three independent switches for each wavelength. You can turn on one, two or three wavelengths together based on your needs. The unique design makes LELMS-38L easy to control and use.

Applications

The LUYOR LELMS-38L Three-Wavelength UV Lamp covers a spectral range from 254 nm to 365 nm, delivering UV‑A, UV‑B, and UV‑C output in a single instrument. Each wavelength band serves distinct purposes across multiple disciplines:

365 nm (UV‑A) – Fluorescence Excitation & Optical Inspection

UV‑A radiation excites electronic transitions in certain organic and inorganic compounds, causing them to emit visible fluorescence. The LELMS‑38L Three-Wavelength UV Lamp is ideally suited for fluorescent dye visualization, mineral and gemstone identification, forensic evidence examination, counterfeit document verification, and detecting surface cracks or coating irregularities in manufactured components.

302 nm (UV‑B) – Photochemical Activation & Biological Modulation

UV‑B photons carry sufficient energy to trigger specific photochemical reactions without causing excessive tissue damage. This makes the 302nm band valuable for controlled biological applications, including DNA damage and repair studies in molecular biology, as well as dermatological phototherapy for conditions such as psoriasis and vitiligo. In agricultural research, it is also used to study plant secondary metabolite production and stress responses.

254 nm (UV‑C) – Germicidal Irradiation & Nucleic Acid Crosslinking

UV‑C radiation is strongly absorbed by nucleic acids (DNA and RNA), inducing the formation of pyrimidine dimers that disrupt replication and transcription. This mechanism effectively inactivates bacteria, viruses, fungi, and spores. The LELMS‑38L Three-Wavelength UV Lamp delivers reliable 254nm output for surface decontamination, water and air sterilization, laboratory biosafety cabinet disinfection, and crosslinking of nucleic acids to membranes for Southern and Northern blotting applications.

LUYOR offers OEM services for three-wavelength UV lamps, please contact us at here if interested.