【Cold rolled plastic sheet steel shell】1.5mm is high in hardness and strong in strength anti-corrosion, anti-oxidation.
【18 grains of bright LED】Energy saving, environmental protection, long life, small volume.
【Application】Industrial LED acousto-optic alarm range for crane, gantry crane, bridge crane, crane, tunnel construction, metallurgy, ports, construction site, school security, security risks seriously etc..
【PS scientific scattering lampshade】With good divergence effect and uniform light transmission.