... 5)Factory,ISO9001:2000,2years warrant Square led panel,smd3014 led light panel,15w led panel light BrandLESCModelYQ-TH033-15WMain MaterialAluminumLED Power15wLight ... etc. Installation: Advantages: 1,high-quality aluminum housing,and better heat dissipation,light decay less,live longer ... known as transformer): Transformer determines the life of lamp,lamp beads with more than 50000hrs no problem,but ...