4" LED Rechargeable Ultra Violet Light

Don't guess! Check all your clothing and gear with this ultraviolet light source.

Enables humans to determine if brighteners are present in camouflage, blaze orange, or laundry detergent. If whatever you're testing glows when exposed to the ultraviolet light, you know brighteners are present.
You should use Atsko products such as U-V-Killer to eliminate them..