Luminescence Mode: Positive Luminescence. It is super bright and suitable for your daily use. Up t o 15 C olors to C hoose F rom and 10 A djustable B rightness O ptions: This battery powered light bulb is designed with 12 RGB colors (red, orange, yellow, green, moon blue, ocean blue, bright blue, sapphire, purple, purple, rose violet, magenta) and 3 color temperatures (3000K warm white, 4000K natural white, 6000K cold white) combined.