Brighten the night this season, wear Snowflakes String Lights Necklaces! Give this cool look out at parties, in stocking or use as fun decor. Instructions: To activate the snowflake LEDs squeeze the knob on the battery pack once. This will be a still light function. Squeeze the battery pack again to activate the blinking LEDs. Note: Although we try to use the best white LEDs available, the tone of the white LEDs will vary quite a bit from unit to unit. The shades of white are inconsistent; some appear more bluish than others.