The XRE LED Darkroom Safelight contains 2 LED strips in parallel with a total 10 LEDs. Safelight output has a dominant wavelength of 625nm, classified as red/orange, and the LEDs have an expected life of 50,000 hours. Units are on a gimble mount, meaning for easy installation, and can be connected in series to provide power to a “daisy chain” of up to 4 units.