from pandas import DataFrame, Series

def signals(data: DataFrame) -> Series:
    """
    Generate signals for entering a long trade when the market makes 
    a lower low for 2 consecutive days.

    Returns a Series with 'L' for long signals and 'N' otherwise.
    """
    lower_low = data['Low'].shift(1) > data['Low']
    return (lower_low & lower_low.shift(1)).apply(lambda x: 'L' if x else 'N')