1. Choose from seven lighting modes at will 2. Button switching mode 3. Press the button to switch the light speed 4. Low power sleep mode achieves super standby capability 5. Key wake-up function<br><br>Exquisite and compact, paired with button batteries, can be carried around Seven lighting modes and six lighting speeds, short press the button once to change the lighting speed, short press the button twice to change the lighting mode Kit Name: LED Shell Flow Light Production Kit Power supply mode: 3V button battery Working current: 0.5mA 3V (All lights are on) 0.19mA 3V (One light is on) Maximum current: 1.5mA 3V (At startup) Sleep mode current: 0.4uA 3V LED display refresh rate: around 245Hz Six types of light speeds Short press KEY1 to switch the speed of the light change. There are six gears for the speed change, which are: 1000ms, 500ms, 100ms, 50ms, 20ms, 10ms The speed changes from high to low with each press of the button, and there is a power down saving function Display of seven lighting modes: Short press KEY1 twice in a row to switch modes, with a total of seven modes and a power failure saving function Mode 1: Switching between D1-D10 in sequence Mode 2: Switching between D1-D10 in sequence, and then switching between D10-D1 in sequence Note: This is a DIY kit and needs to be assembled by yourself. Colour:Red Material:PCB<br><br>Package Contents: 1 x DIY kit(Does not include 3V button battery; the lanyard color in the picture is random, no specified color is accepted)<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.