Here is the laser engraver with this laser tube for your reference: 2. Maximum output voltage:DC25KV (40W;50W) / DC28KV (60W) / DC35KV (80W) Maximum output current: DC20mA (40W;50W)/ DC23mA (60W) / DC28mA (80W) Isolation Withstand voltage: Input-output, input-enclosure: AC2000V- 10mA-60s; negative pole of output connected to enclosure.Protection: with well-grounded enclosure, output circuit of power supply can be open for short time (but arc between positive pole and enclosure should be avoided). Response time (from time of input being available to the output current being up to nominal value). This item is in the category "Home & Garden\Tools & Workshop Equipment\Hand Tools\Other Hand Tools". The seller is "accuni-express" and is located in this country: CN. This item can be shipped worldwide.