70W high quality led tunnel lamp 1.CE, RoHS 2.Lifespan>35000Hrs 3.2 years warranty ... material with unique finned type design,the radiator and lamp Integration,control the LED junction temperature in a allowed range efficiently.4 ... to install and little maintenance costAdvantage1. highway and road lighting2. Low power consumption, high power efficiency.3. 50,000-80,000 hours ...