Warranty
Every module comes with 3-year warranty to be free of defects in workmanship and materials, under normal use and conditions. I agree, at option during the warranty period, to repair any defect in material or workmanship or to provide a repaired or refurbished product of equal value in exchange without charge (except for a fee for shipping, handling, packing, return postage, and insurance which will be incurred by the customer). Such repair or replacement is subject to verification based on proof of purchase.
Tubes
Tubes are diversed and lively. In the BARD modules they operate in laid-back conditions, so their lifespan is long as a rule; However, they may be physically damaged - If you're touring musician or fidding around the cases a lot, you may want to get spare tubes at the time of the order.
Support
If you have any question regarding modules, don't hesitate to write :)