... products are produced using the glass plate,enough to power 2 years product warranty,never use copper clad aluminum ... transformer)modelDimensionsSwitching power supply30-48W--12V/3A,24V/2A,5V/6AHT40W90×70× ... 12V/16A,24V/8AHT200W200×110×50mmSwitching power supply240W--12V/20A,24V/10AHT240W200×110×50mmSwitching power supply350W--5V/60A,12V/30A,24V ...