A strong green candle after a red candle indicates that previous selling has now been converted into buying. Which is a strong Bullish signal. We can see from here there is a good bullish trend.
This strong green candle which is bigger and it Engulfs the previous red candle is called Bullish Engulfing.
Green Inverted Hammer after a few red candles indicates that the buyers are holding the market and the buying pressure is holding the price. Which is a strong sign of trend reversal.
Green candle, which opens and closes inside the previous red candle, after a down trend indicates that buying is strong and its a sign of trend reversal.
