395nm UV Pen Light for UV Ink and Fluorescence Inspection

This 395nm UV pen light is a portable UV inspection torch for UV ink, UV varnish, security marking and fluorescence detection. The 5W Epistar chip and quartz lens produce a strong, evenly spread 395nm beam that makes fluorescent tracers, UV inks and coating defects visible at a glance, while the pen-size aluminium body with pocket clip lets inspectors carry it through a full shift. Instant on/off and air cooling keep the torch ready for continuous spot checks on printing lines, incoming goods tables and field service calls.

Datasheet

Inspection advantages

• 395nm fluorescence excitation: the band used for UV inks, security threads, optical brighteners and fluorescent leak dyes, so tracers light up clearly.
• Quartz lens, low UV loss: keeps output stable for repeatable visual inspection instead of fading after a few minutes of use.
• Instant on/off switching: check, move, check again with no warm-up cycle between samples.
• Air cooled aluminium body: comfortable for continuous bench inspection and safe on heat-sensitive print surfaces.
• No mercury, no ozone, no VOC discharge: suitable for indoor QC rooms and food or medical packaging audits.
• 10000 hour lifespan: lower cost per inspection hour than mercury black lights and tube lamps.

Typical applications

• UV ink, UV varnish and security print verification on labels, packaging and documents
• Fluorescence inspection of coatings, adhesives, residues and contamination
• Anti-counterfeit checks on banknotes, passports, brand labels and tax stamps
• Fluorescent leak detection in HVAC, automotive and hydraulic service
• Quality control spot checks on incoming goods and production lines

FAQ

Q1: Which wavelength should I choose for inspection?
395nm and 385nm are normally used for printing and fluorescence inspection; 365nm is chosen when adhesive or resin curing is also required.

Q2: Is it battery powered or mains powered?
The standard CG-SP-5A/C runs on AC85-265V with a cable. Rechargeable battery versions are available on request.

Q3: What is the recommended working distance?
15-20mm from the sample gives the brightest fluorescence response and the highest UV intensity.

Q4: Is eye protection required?
Yes. Do not look directly into the beam and use UV safety goggles for prolonged inspection work.

Q5: Can you customise the wavelength and branding?
Yes. Wavelength, housing, cable plug type, logo and packaging can be customised for OEM and ODM projects.

Order information

MOQ 1 set, USD 100-120 per set, T/T or L/C, 2-3 working days for stock units, supply ability 100 sets per day. Tell us what you need to inspect and we will confirm the wavelength, lens and packaging that fit your line.