reading DIR EXPORERS report http://www.direxplorers.com/dir-cave...sos-video.html they experimented with SARTEK LED LIGHTS

video under http://www.joehesketh.com/2012/01/dos-pisos/



http://www.sarind.com/proddetail.php?prod=LED10000VW ...... and this baby costs alone Price: $1575.00

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that is serius buisness ! not our toys for few €/$