1. Lamp holder size: 9.5*4cm (black base) 8.5*4CM (crack base) 2.Light board material: acrylic material (the correct way to hold the light board is to hold both edges of the light board) 3. Lighting colors: 7 colors (red, green, blue, yellow, cyan, purple, white) 16 colors 4. Product power/voltage: 4W/5V 5. Power supply mode: USB interface or 3 AA batteries (note that the battery is not equipped with the factory) 6. Switch mode: touch switch (long press the power button for 3 seconds to turn off) remote control switch 7.Bright mode: fixed one-color or seven-color gradient, fast change 8. Bright light operation: fix a single mode, touch the switch once, change the color 9. (soft light/eye protection) low power consumption, no heat after working for a long time, high-quality LED light source, soft and uniform light, no glare, no flickering, no eye damage. 10. (This is a great gift) It is suitable as a gift for any holiday and anniversaries. Such as Christmas gifts, New Year gifts, Birthday gifts, Halloween gifts, Thanksgiving gifts and wedding anniversary surprises. It can also be the best toy for your precious child.