Lu,
That website is the Israeli Aircraft Industry site, and the tip lights have nothing to do with static electricity.
"It is battery operated with a limit of 60 flight hours at night.
The batteries can be replaced easily in the field." says the web site.
The tip light look identical to those Sikorsky provides on the tips of H-53 blades.
In hundreds of hours of night combat, I have NEVER seen a helicopter glow with a halo of any kind seen by naked eye.