Onelight is a compact, ultraportable light designed for everyday carry and outdoor use. Its lightweight and compact form allows it to hang easily on a keychain or backpack and be carried without burden for daily emergency lighting and outdoor adventures. Ultraportable design: lightweight, compact and easy to carry; can be hung on a keychain or backpack for ready access when needed. brightness lighting: uses a quality COB LED for focused illumination with good penetration; provides clear, bright light for night hiking, camping, or other lowlight activities. Convenient USB charging: builtin rechargeable battery; USB fast charging; compatible with a variety of charging devices; recharge anytime and anywhere to avoid frequent battery replacements. Multifunctional application: white light illumination plus red and blue warning light modes; suitable for outdoor activities, security patrols, and emergency rescue. Onelight can be used for multiple purposes to meet the needs of different environments. Use scenarios: Night hiking or camping: portable light to illuminate trails, read maps, and locate gear without needing bulky lighting. Vehicle or roadside situations: red/blue warning modes provide visibility and signaling in emergencies or roadside support. Security patrols or emergency response: compact, versatile light supports patrol duties and rescue operations in varied environments.