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100% brand new, a quality, easy to install. waterproof and can work in severe conditions. high efficiency and energy saving. low temperature, low power consumption and lifespan to 50000 hours. built-in chip, stable and practical. low voltage protect, high precision constant current driver chip. built in circuit (current regulator)-prevents led damage from voltage variations & spikes. new led technology reduces power consumption from 40% to 80%. easy plug and play installation.