... Luminous efficacy is over 100lm/W. High brightless and energy saving.4, Reverse polarity protection function. ... Compact, delicate, easy to install, with 4 screws and 4 nuts, almost can be suitable for all auto ... to protect the LED without damage, and when environment temperature and voltage is normal, the lamp ... ,2 wire with 1.5 meter and Anticorrosion, prevent heat, 4 screws and 4 nuts, User manual.8, ...