I HAVE ALL DARK EGGS...AND WHEN I CANDLE..ITS VERY HARD TO SEE...I HAVE A BOX MADE WITH A 100 WATT BULB IN IT...THEN I TOOK AN OLD MOUSE PAD AND CUT A SMALL HOLE IN IT SO THAT I GET A GOOD SEAL WITH THE EGG...I SET THE EGG ON THERE AND THE LIGHT GOES RIGHT THROUGH THE EGG...HAS NOWHERE TO ESCAPE...