ONF customized ColorFull LED for all range plants, which is combining advantage of three wavelengths and full spectrum light color, the color is closer to the real but more dazzling, which brightens up the aquatic plants vividly and clearly. Good For Growth Flat Nano+ with dimmable full spectrum (ColorFull LED) helps your plants to grow faster and better. ONF Link Via ONF Link you can manage multiple devices and adjust the brightness. Additionally, you can set five groups of time period with brightness to create a personal daylight circle. ONF Link support iOS 10.0 or later and Android 6.0 or later Different meanings between Indicator light Power Indicator Lights up: Working, Flash rapidly: Changing the brightness Timer Indicator Lights up: on ‘Daylight circle’ mode, Flash rapidly: Standby Bluetooth Indicator Lights up: Bluetooth connected, Flash rapidly: Pairing available Daylight circle Thought the 'Daylight Circle' mode to set up five groups time periods and brightness. Once you set, this cycle will be continued day by day with ramp up and down capabilities to mimic the rise and setting of the sun to provide the most natural experience for aquarium tank inhabitants 24hr memory No more worried after power failure! ONF Flat Nano+ has built-in memory and will display the level last chosen even when used with a timer. If you set via app, don’t worry at all within 24 hours. With An Extension Stand Flat Nano+ with an extension stand to become the smart desktop planted lighting, allows the Flat Nano+ to be used in multiple uses. What's in the box The light fixture of Flat Nano+, mounting piece, rubber stopper, power adaptor, screws 4-level brightness adjustment Please make sure that your finger can totally cover the button. Long press to turn on the light. Short press to adjust the brightness. If you want to turn off the light, just long press the button again. Pairing Flat Nano+ with ONF Link App Turn on Bluetooth and plug in your Flat Nano+, connect it with ONF Link app before the blue indicator light stop flashing. Open ONF Link > Device list > Press ‘+’ to search device to connect.