本照明母线槽外壳为挤压成型，具有体积小、强度大、安装方便等优点，适用于各种场所的日光灯、汞灯及其它照明器材的供配电用，规格有：20A、40A。
The bus channel have a case of squeezing torming.Advantages:Small Vloum,high strength and coveniently ficing,etc.Adapt for power supply and distribution of fluoresent lamp,mercury-arc lamp and other lighters anywher.Standard:20A、40A。