UV lamp

UV lamps are generally categorized by wavelength: UVC (200-280nm) is used for germicidal sterilization in hospitals, water treatment, and HVAC systems; UVB (280-315nm) is primarily for medical phototherapy and reptile lighting; and UVA (315-400nm) is used for industrial curing (inks/adhesives), nail lamps, and counterfeit detection. B2B buyers must match the wavelength strictly to the intended application to ensure functional efficacy.

Buyers should focus on UV Intensity (measured in μW/cm²) and Rated Lifespan, which typically ranges from 8,000 to 15,000 hours for high-quality quartz tubes. For LED-based UV lamps, thermal management (heat dissipation) is critical, as excessive heat rapidly degrades UV output. Always request spectral distribution charts to verify the peak wavelength accuracy.

For the US market, EPA registration is often required for pesticide-claiming devices (disinfection), and UL/ETL certification ensures electrical safety. For the EU, CE marking (LVD and EMC directives) and RoHS compliance are mandatory. Additionally, because UVC is hazardous to skin and eyes, lamps should ideally feature PIR motion sensors or delayed-start timers to ensure human safety.

High-quality Quartz glass allows for over 90% UV transmittance, whereas cheaper high-boron glass drops significantly in efficiency and has a shorter lifespan. You can verify this by checking the ozone-generating capability (if required) and requesting a transmittance test report from the supplier. Quartz tubes also remain clear over time, while inferior glass may 'solarize' or turn brown/purple.

UV lamps are extremely fragile. You must mandate shatter-proof packaging, including EPE foam custom-molding and double-walled corrugated boxes. For bulk sea freight, specify palletization with 'Do Not Stack' markers. It is highly recommended to include Impact Indicator stickers (e.g., ShockWatch) on the outer cartons to identify mishandling during transit.

Focus on Tiered Pricing based on UV tube quality rather than just the outer housing. Ask for a breakdown of the ballast brand and tube origin, as these are the most expensive components. Negotiate a 1-2% spare parts allowance (extra tubes) to be included in the shipment to cover potential breakage, which is more cost-effective than shipping replacements later.

Utilize Secured Trading services on Made-in-China.com to protect your payment until shipping documents are verified. For large orders, hire a third-party inspection agency to perform a Function Test (UV output measurement) and a Hi-Pot electrical safety test before the final balance is paid. Never rely solely on factory-provided gold samples.

Some UV lamps contain trace amounts of Mercury (Hg). You must confirm with your freight forwarder if the lamps fall under UN3506 (Mercury in manufactured articles). Ensure the supplier provides a Material Safety Data Sheet (MSDS) and a Certificate for Safe Transport of Goods to avoid customs seizures or specialized 'Dangerous Goods' surcharges.