... flame-retardant PC main part;, high cooling pure aluminum, it design safety.3: Use the LED chip of famous factory and ... Back lighting, step lighting, light boxes4. Merchandising, exhibition stands, and panels SHIPPING OPTIONS OF LED Panel Light 300*300 36W :WHY SWIIT ... checks during production, raw material check, Lights beads check, aluminum plate check ,power supply check and the finished products 48 ...