【Pen-Type, Knock-Type Button】The long-awaited knock-type penlight is finally here. The knock surface is large and easy to press. Simply click to switch modes securely. Because it's a knock-type, it prevents accidental activation from bumps or pressure during carrying or storage, thus preventing the battery from draining unexpectedly. 【Warm & White 2 Light Colors】The warm light illuminates evenly, naturally, and softly. It's a penlight that's gentle on the eyes. It can be used for pupil observation; the penlight is designed with a pupillometer and a circular gauge to measure pupil size. The white light has uniform light distribution and concentrated light spots, leaving no blind spots! It's effective when examining dark mouths, ears, or noses. This single penlight serves multiple functions as an examination light and a night shift light. 【Type-C Fast Charging, Max 5 Hours Continuous Lighting】Utilizing industry-leading new charging technology, it can be fully charged in just 1 hour. The Type-C charging port makes charging convenient. The penlight can provide up to 5 hours of continuous lighting on a full charge. This reduces the hassle of battery replacement. Use the penlight with ease every day. 【Compact & Lightest】Being rechargeable, it's lighter than battery-powered models. This penlight weighs only 17g, making it the lightest in the industry. It comes with a clip, making it easy to attach to a chest pocket or binder. Convenient for storage and carrying. $$980