LDR to detect candle flame movement

Using Arduino Sensors
5

Here is an Ebay link for 10 of the devices that should work well...
http://www.ebay.com/itm/10Pcs-Photoresistor-GL5528-LDR-Photo-Resistors-Light-Dependent-Resistor-/330721040658?pt=LH_DefaultDomain_2&hash=item4d00829912#ht_2065wt_1399

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