For those looking to install emergency lights in a concealed manner, the dark installation indicator light accessory is an ideal choice. This underground pre-embedded box ensures that the lights are securely installed and only visible when necessary. It is designed to work with a range of LED light fixtures, including recessed lights and ceiling lights flush mount, providing a versatile solution for emergency lighting needs. Features -Color:White -Material:Plastic -Size:34.50X16.00X4.00cm/13.56X6.29X1.57in -Durable plastic construction: made from durable plastic, this embedded sign light base box is both durable and waterproof, ensuring longterm use in various conditions -Highbrightness led lights: the highbrightness led lights provide clear and bright indications of landmark positions, significantly enhancing safety and visibility -Easy to install: embedded box design allows for a quick and easy installation process, saving time and reducing labor costs -Emergency lighting function: features an emergency light function that activates during critical situations, providing necessary illumination for safety -Reliable and tested: this product has undergone rigorous testing, ensuring durable, reliability, and stability in various environments Package list: 1pcs x light bottom box