We all our fixture could be 5 year guarantee.

Yes we are.

Atleast 4kV for L-N and 6kV N/L-PE depends on which brand of drvier that you use.

Yes we sale empty house.

Yes, I suggest out type YASL-20 to you. Please see attached catalog page.

We can supply 5 years warranty street light. I recommend two of our best sale street light to you. Please find attached catalog page.