Part information of 4m 5m led 20w 30w Solar Street Light: 1. Super bright LED, 5500-6500K for choice, 120LM/W, IP65 cast aluminum lamp housing. 2. High efficiency polycrystalline solar pane, with aluminum frame, tempered glass and junction box. 4. white reflective road studs for motorway-Nokin Motorway . 36 of the Road Traffic Act 1988. 1.2.4.