1)Work voltage: DC12V or DC 24V
2)Optional within 80W,100W,150W,200W,300W speaker in the middle of lightbar
3)This lightbar adopt high quality halogen bulb(halogen lightbar) .the warning sign is
very brightness, this warning ligt is popular !
4)this warning light (warning sign) is very bright and visible both at night and during the day
and is very easy to install and comes with Mounting hardware for roof mount. There is no
need to drill unnecessary holes into your vehicle to install this bar