1. Brightness upgrade: Compared with the product, the has increased the brightness by 40%. The highest brightness can reach 6000 . 2. Material upgrade: The overall material of the product has been upgraded , which is more and not easy to damage. Features: The upgraded solar sensor light that can adjust the color temperature of the light 3. Battery upgrade: At , the car lithium iron phosphate battery is used. The battery capacity has increased by 30% compared with that the upgrade, and can be 10,000 . 4. Upgrade waterproof: heavy level waterproof, 't worry at all, affect the normal use of the product. Use environment: streets, , courtyards, , pastures and other that can be exposed to sunlight.