Jelight 90-0019-01 Mercury Pen-Ray UV Lamp

is a compact, double-bore quartz light source featuring a blue filter sheath that produces primarily 365 nm longwave UV-A radiation. With a 57.2 mm (2.25 in) lighted length, it is designed for fluorescence inspection, analytical instrumentation, and optical research applications using the Jelight PS-1 power supply.

Applications

Longwave Fluorescence Inspection

The 90-0019-01 provides filtered UV-A excitation for examining fluorescent materials, dyes, specimens, and chemical compounds. Its compact lighted section supports fluorescence inspection and laboratory investigations requiring a localized longwave ultraviolet source.

Photometric and Fluorometric Instrumentation

Provides longwave ultraviolet illumination for fluorometric measurements, photometric analysis, and optical instrument development. Its compact quartz construction supports integration into compatible laboratory and OEM analytical systems.

Optical Research and Calibration

The lamp's filtered mercury emission supports UV-A optical studies, detector evaluation, and wavelength-specific reference applications. Its 351/365 nm spectral output provides a compact longwave source for compatible research instruments.

Laboratory and OEM Equipment Integration

The compact 57.2 mm (2.25 in) lighted length accommodates specialized equipment requiring a localized UV-A source. Its one-ended electrical configuration supports installation within compatible optical assemblies, laboratory instruments, and custom research systems.

Features

• Filtered longwave ultraviolet output, nominally 365 nm, with manufacturer-specified 351/365 nm emission.
• Double-bore quartz construction with a blue filter sheath.
• Compact 57.2 mm (2.25 in) lighted length for specialized optical applications.
• Standard Pen-Ray connector with a 406.4 mm (16 in) cord.
• Compatible with the Jelight PS-1 power supply, available in 115 V and 230 V configurations.

Specifications

Optional Accessories

• Jelight PS-1 Power Supply

Frequently Asked Questions

How does the 90-0019-01 differ from the 90-0012-01?

The 90-0019-01 features a blue filter sheath that produces primarily longwave UV-A output, while the unfiltered 90-0012-01 emits primarily 254 nm UV-C radiation. The filtered model also has a slightly longer lighted section of 57.2 mm (2.25 in), compared with 53.8 mm (2.12 in) for the 90-0012-01.

Does the 90-0019-01 emit 351 nm or 365 nm ultraviolet radiation?

Manufacturer documentation identifies the lamp's spectral output as 351/365 nm, while its product description specifies 365 nm as the principal longwave emission. Both wavelengths appear in published specifications, so the appropriate designation depends on the level of spectral detail required for the application.

Which power supply is required for the 90-0019-01?

The Jelight PS-1 power supply is recommended for this lamp. It is available in 115 V (99-0055-01) and 230 V (99-0055-02) versions and is sold separately. Select the appropriate version for the available electrical supply.

What safety precautions are required when using the 90-0019-01?

Avoid direct eye and skin exposure to ultraviolet radiation by using appropriate UV-protective eyewear, shielding, and protective clothing. Disconnect the power supply before handling or servicing the lamp, allow it to cool before replacement, and provide appropriate ventilation. Do not assume the lamp is ozone-free without manufacturer confirmation.

Warranty

This product is covered by a 12-month warranty against defects in materials and workmanship. Inspect the product before use and contact ScienceLighting support if any defects or issues are identified.

Ordering

Have additional questions? Contact ScienceLighting at (650) 961-9031 or sales@sciencelighting.com.