Yinhuang Technology Lu-300A Visual Particulate Inspection Hood Lamp

Overview

The Yinhuang Technology Lu-300A Visual Particulate Inspection Hood Lamp is an engineered solution for manual visual inspection of sub-visible and visible particulates in parenteral pharmaceuticals, biologics, and sterile drug products. Designed in strict accordance with the ChP General Chapter 0904 (Visual Inspection Method), USP <790> “Visible Particulates in Injections”, European Pharmacopoeia monograph 2.9.20 “Clarity and Colour of Liquids”, and Japanese Pharmacopoeia XVII requirements, the Lu-300A provides standardized, reproducible illumination conditions essential for pharmacopeial compliance. Its core optical architecture employs dual linear high-CRI white LED light strips (6000–6500 K) configured as a vertically oriented, wide-angle collimated light band—optimized to eliminate shadowing and maximize contrast enhancement across translucent or opaque containers. Unlike conventional benchtop lamps, the Lu-300A integrates fixed 250 mm viewing distance geometry, ensuring operator consistency and minimizing inter-observer variability during manual inspection—a critical factor in GLP/GMP-regulated environments.

Key Features

• Optimized photometric design: Dual 250 mm × 10 mm high-luminance LED strips generate a uniform, adjustable vertical light band (0–10,000 lx at center), delivering omnidirectional illumination from top, front, rear, left, and right angles to reveal particles as low as 50 µm against black or white diffuse backgrounds.
• Precision ergonomic configuration: Fixed 250 mm eye-to-sample distance conforms to ICH Q5A and pharmacopeial anthropometric guidelines; eliminates parallax error and supports repeatable inspection posture.
• Interchangeable background system: Removable matte-black and matte-white PVC diffuser panels mounted on synchronized sliding rails—enabling rapid background switching without tooling or re-alignment.
• Dedicated optical aid: Integrated 110 mm diameter, 2.5× magnification achromatic lens with anti-glare coating reduces ocular fatigue during extended shift-based inspection workflows.
• Robust mechanical construction: Entire housing fabricated from brushed 304 stainless steel—resistant to cleaning agents, autoclave-compatible surface finish, and compliant with ISO 13485 cleanroom handling standards.
• Digital illuminance control: Microprocessor-driven constant-current driver enables stepless, stable dimming with ±2% linearity across full range—no flicker, no thermal drift, and >50,000-hour LED service life.

Sample Compatibility & Compliance

The Lu-300A accommodates standard pharmaceutical primary packaging formats including 2–100 mL vials, syringes (with and without plungers), ampoules, and pre-filled cartridges. Its compact footprint (330 × 310 × 200 mm) and low weight (4.8 kg) allow seamless integration into QC laboratories, isolators, and Grade A/B cleanrooms. The device meets mandatory illumination criteria defined in ChP 2020 Vol. III (Biologics), USP <790>, EP 2.9.20, and JP XVII for clarity testing and visible particle detection. It supports audit-ready documentation per FDA 21 CFR Part 11 when used within validated SOPs—particularly where manual inspection remains the designated release method per ICH Q5A Annex 1. Background reflectance values (black: <5% diffuse reflectance; white: 85–90%) are certified per ASTM E308-22 spectral measurement protocols.

Software & Data Management

As a Class I non-automatic visual inspection device, the Lu-300A operates without embedded software or digital connectivity. All operational parameters—including illuminance calibration records, background panel maintenance logs, and daily verification checks—are documented manually per site-specific SOPs aligned with ALCOA+ principles. Optional traceability is achieved through integration with LIMS or ELN systems via external calibration certificates (NIST-traceable lux meter reports) and scheduled preventive maintenance logs. While the unit itself does not store data, its design facilitates full compliance with GMP Annex 11 (Computerized Systems) when deployed within a controlled, paper-based or hybrid electronic quality management system.

Applications

• Final container inspection of monoclonal antibodies, viral vectors, and mRNA-LNP formulations per ChP 2020 Section III sterility and clarity requirements.
• Batch release testing of small-volume parenterals (SVPs) and large-volume parenterals (LVPs) under USP <790> and EP 2.9.20.
• Investigational new drug (IND) and biologics license application (BLA) submission support—providing auditable, pharmacopeia-aligned visual inspection capability.
• Root cause analysis of container-closure integrity failures, glass delamination events, or silicone oil droplet formation in prefilled syringes.
• Training and qualification of QC analysts in standardized visual inspection technique per PDA Technical Report No. 27 and ISO 13408-1.

FAQ

Does the Lu-300A comply with USP <790> illumination requirements?
Yes—the device delivers ≥5000 lx (minimum) and up to 10,000 lx at the sample plane, satisfying USP <790>’s specified range of 2000–10,000 lx for white-light inspection.
Can the background panels be replaced with custom colors?
No—only certified matte-black and matte-white PVC diffusers are supplied and validated; substitution invalidates pharmacopeial conformance.
Is the magnifier optically calibrated?
The 2.5× lens is factory-aligned to the 250 mm viewing distance and verified per ISO 10110-7; no user recalibration is required.
What is the recommended calibration frequency for illuminance verification?
Per ASTM E1318-21, lux meter verification should be performed daily prior to use using a NIST-traceable handheld meter; full system calibration annually by authorized service provider.
Does the Lu-300A require electrical safety certification for EU markets?
Yes—it carries CE marking per EN 61010-1:2010 and complies with RoHS 2011/65/EU; Declaration of Conformity available upon request.