The functions include(driving light + brake light) Description: LED rear lamp is a new type of green electric light source, as the result of constant flow control technology of advanced luminous uniform , it is totally light free-pollution, no noises, non-interference. Specification: Condition: 100% Brand New Continuous lighting Working Voltage: DC 12V Brightness: 70~90 LM(left and right strict symmetric ) Working Current: DC 150mA~300mA Duration of work: 24Hours Working temperature: -40~60 Material: ABS + LED Features: Lead the trend of car light source. No need to change the car to install the item. With reverse polarity protection and open circuit protection. Rear light improves safety while driving. It allows your vehicle to be seen at much further distances. Greatly improves reaction time of oncoming motorists in an accident. Enhance lighting in rainy and foggy days to avoid traffic accident. Bright LED consumes far less power than a standard bulb while maintaining optimal light output. Bright LED bulb with the lifespan up to 50, 000 hours. Shake-proof, dustproof, waterproof, and corrosion resistant. High quality Rear Light with no pollution, no noise, no electronic interference. More efficient, energy saving. Over heating protection device to prevent over heating and burn. Caution: Disconnect the power before installation. Package included: 1 set Lights (for L/R) .Andall requiredcables.