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Showing results for tags 'usb dew reflectors'.
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Hi guys I currently use a celestron powertank for power eq5 goto works fine. I'm looking at dew heaters and was wondering if anyone has found a 5v one as the powertank has only one 12v supply and 2 USB slots .I have just purchased a small 40mm fan to see if keeping the air flow within the reflector tube will prevent dew from forming . Si