HS1 Bulb Super Plasma GT-X Single Pack. For the look of HID there is nothing closer than PIAA's new HS1 Super Plasma GT-X. The bulb shines at 5000K giving off a beautiful bluish-purplish look. With PIAA bulbs you never sacrifice performance and with XTRA technology this bulb delivers 60w/60w, but only draws 35w/35w. Make sure to check PIAA's application guide or your owner's manual to ensure a correct fit.