◆ Materials, qualities and special features: High pressure diecast aluminum shaping outer shell of the electric appliances box matched with ihgh-purity aluminum or PC reflector. Integration of electric gear and lanterms with electric appliances with little and dainty structure, nice-looking and light weight. Excellent fog-resistant, water resistant and dust-resistant properties. Simplified installation (by tube-hanging, hook-hanging or sucking hanging form) facilitated by convenient splitting and a wide range of application. Two wide and narrow grading systems ready to be chosen according to requirement Attached with various fitting parts to raise the dust-resistant effects. May be matched in use with 250W-400W sodium or metal Halide lamps. ◆ Places suitable for application: Factory buildings, standiums, shops or other high and large halls requiring illumination.