7 Powers candles are used for its strength to call upon the 7 powers: peace, open roads, against enemies, employment, opportunity, fertility and marriage. Some popular saints that surround its miracles around the 7 color candle are the 7 African Powers. Burn all at once or over a long period, attuning to the magical properties of each color as you go. In a sturdy glass 7 day candle jar, these candles are eight inches tall. Burnig time is approx. 16 hours per layer in the best conditions.