MINI 395NM BLACK LIGHT FLASHLIGHT FOR PET URINE DETCTION This is 395nm wavelength UV light. Makes it easier to detect dried pet urine stains, ultraviolet flashlight also good for antique appraisals, makes fluorescent items glow at the party or Halloween. Resin curing is also available(Work at daytime but will detect more efficiently in darker environments).More mini than other flashlightsonly 3.6inch, but Powerful.The portable handheld pet dried urine detector will make your daily life easier! HIGH POWER & USB-C CHARGE The small but powerful blacklight can work continuously for 3-6 hour. Power IndicatorAutomatically turns to RED light to remind you to charge in time, avoid the hassle of unexpected shutdown. The Type-C charging port makes it more convenient and efficient to get fully charged (in 4 hours) directly via any USB devices such as laptop, power bank, adapter. Reduce the trouble of frequent battery replacement. SAVE MONEY.