💡 【Tri-Level Microwave Sensor】 Walrusled 48'' led stairwell wraparound vapor tight batten light fixture comes with intelligent sensor. Tri-level microwave sensor allows the fixture to dim or turn off after a period of time when no motion is detected. Twilight brightness can be choosen 20%, 40%, 60% or 100%. Hold time can be choosen 30S-∞. The microwave sensor can detect motion distance within a maximum of 33 feet. You can adjust its sensing range, hold time, stand-by brightness percentage and stand-by time according to your preference. 💡 【Waterproof & Dustproof】 Walrusled 4 foot led car wash vapor tight batten light fixture is integrally formed with non-corrosive polycarbonate (PC) housing, PC or stainless steel clips, which makes it extremely durable, impact-resistant and able to withstand moisture, dust and extreme temperatures:-4°F to 104°F. It is designed to retain its color and luster over time. Suitable for both indoor and outdoor harsh environments applications, including utility lighting, parking garages, freezers and cold storage facilities, food processing, car washes, stairwell lighting and low bay lighting. 💡 【3 CCT & 2 Wattages Selectable】 Walrusled 48 Inch led warehouse wrap waterproof hanging batten light fixture features with 3 kinds of color temperature 3000K/4000K/5000K and 2 wattages 20W (2500lm) /40W (5000lm), which offers soft and uniform light distribution through your space, sturdier construction, and no yellowing over time. You can choose any color temperature and brightness to create the most suitable lighting for your activity or environment, such as kitchen, walk in closet, laundry room, warehouse, workshop, workbench, utility room, storage room, craft room, basement, hallways, office and etc.... 💡 【Up to 75% Energy Saving & Easy Installation】 Walrusled 1.2m led parking lot vapor proof surface mount ceiling batten lights provide 125lm/w high lumen efficiency, saving you up to 75% energy with the latest LED technology, and you can control the brightness and energy consume. Provides more than 54,000 hours of maintenance-free operation. Mounting Bracket and screws included for Wall Surface Mount. There is also one cable gland provided for waterproof cable connection (Cable not included). Suspension mounting supported. 💡 【Walrusled Warranty】 Walrusled 4ft led airport wraparound vapor tight ceiling batten light has passed CE, FCC, SAA & UKCA certification, safety and reliable. With calculated lifespan up to 100 000 hours, these fixtures are made to last decades under normal operation! We also provide 1 year warranty & a 5-year technical support to ensure your 100% satisfaction. If any defects, we promise to reply within 24 hours and provide you with a satisfactory solution.