Jelight 90-0020-01 Mercury Pen-Ray UV Lamp

is a compact, double-bore quartz light source producing primarily 254 nm UV-C radiation. Featuring a short 19.1 mm (0.75 in) lighted length, it is designed for analytical, photochemical, and optical applications requiring localized ultraviolet illumination in confined spaces using the Jelight PS-1 power supply.

Applications

Compact Analytical Instrumentation

The 90-0020-01 provides shortwave ultraviolet radiation for analytical instruments, UV detector systems, and laboratory measurement equipment. Its compact dimensions allow installation within instruments with limited space for an ultraviolet light source.

Photochemistry and UV Exposure

Provides localized 254 nm ultraviolet illumination for photochemical reactions, small-sample irradiation, and laboratory research. Its 19.1 mm (0.75 in) lighted length supports experiments requiring a short emitting section within specialized equipment.

Optical and Reference Applications

Characteristic mercury emission lines support spectroscopic measurements, wavelength calibration, and optical reference studies. The compact lamp configuration accommodates compatible research instruments requiring a localized mercury spectral source.

OEM and Restricted-Access Integration

The short lighted section accommodates specialized laboratory equipment, confined chambers, and optical assemblies where larger Pen-Ray lamps may be unsuitable. Its one-ended electrical configuration supports integration into compatible OEM instruments and custom research systems.

Features

• Primary 254 nm UV-C emission from a compact mercury discharge source.
• Double-bore quartz construction with a short 19.1 mm (0.75 in) lighted length.
• One-ended electrode configuration for restricted-access 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 90-0020-01 differ from the 90-0012-01?

The primary difference is the lighted length. The 90-0020-01 features a compact 19.1 mm (0.75 in) lighted section, compared with 53.8 mm (2.12 in) for the 90-0012-01. Both produce primarily 254 nm UV-C radiation and use the Jelight PS-1 power supply.

How does the 90-0020-01 differ from the 90-0002-01?

Both models feature a 19.1 mm (0.75 in) lighted length, but their electrical connections differ. The 90-0020-01 includes a standard Pen-Ray connector with a 406.4 mm (16 in) cord, while the 90-0002-01 uses stripped electrical leads for specialized equipment connections. Verify the required termination before selecting a replacement.

Which power supply is required for the 90-0020-01?

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.

Does the 90-0020-01 produce ozone?

Yes. This model is listed as ozone-producing and should be operated with appropriate ventilation and exposure controls. Ozone monitoring may be necessary depending on the equipment configuration and application.

What safety precautions are required when using the 90-0020-01?

Avoid direct eye and skin exposure to UV-C radiation by using appropriate UV-protective eyewear, shielding, and protective clothing. Provide adequate ventilation to control ozone exposure, allow the lamp to cool before handling, and disconnect the power supply before servicing or replacing the lamp.

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.