Features * Energy saving and environmental protection. * Easy installation, no maintenance. * High visibility indicator helps to ensure easier and safer night driving. * Unique design, solar energy-based power source. * Can be charged automatically. * Best function of waterproof. Production Detail Technical Parameters Body material  Aluminium(GB-ADC-12)+PC (Japan Brand) Power supply USA Brand High Efficient Solar Panel 2.5V/150MA for NI-MH battery5V/60MA for lithum battery Battery NI-MH  battery 1.2V/600mah Lithium battery 3.2V/500MA LED Ultra bright(5000mcd) diameter 5mm(4pcs or 6pcs) Working mode Constant or flashing (flashing frequency 2Hz) Visual distance  >800m Working hours (1). Blinking: 140hours for NI-MH battery; 130hours for lithum battery(2). Constant: 40hours for NI-MH battery; 35hours for lithum battery Water proof IP68 Life span 3 years for NI-MH battery;5 years for Lithium battery Warranty 1.5years for lithium Load capacity >30T (vehicles can pass on) Size 125*107*25+50mm   Packing Flat: 2pcs/box; 60pcs/ctn; weight: 28kgs; carton size: 67.5*28*20cmSpike:1pcs/box; 45pcs/ctn; weight: 30kgs; carton size: 66.5*44*28cm Product Advantages Application Our Exhabition Testing & Packing FAQ Q1: Can I have a sample order for solar road stud? A: Yes, we welcome sample order to test and check quality. Q2: How does your factory carry out quality control? A: We attach great importance to quality control. Every part of our products has its own QC. Q3: What’s the price? A: As you know, different quantity different price, the bottom price are based on the quantity, delivery time and payment method. Q4: What is your road studs Warranty? A: 1 years warranty. Q5: What about the lead time ? A: Sample have stocks, 2-3 weeks for order quantity.