i have a really big problem...



my second RECI z2 tube is loosing power verry fast, and i need a new tube as soon as posible
both of them survived for 6 months each and 300 working hours first, and second 200working hours...
i have an cw5000 chiller, and did everything to not get it over 25mAmps....
most of my time i do engravings, and verry little cutting on 4mm plywood or 3mm MDF



so, what brand is better these days: EFR, RECI, Yongli?
should i go with reci or choose another brand?