200 blue and white chaser lights with ultra-bright LED. These Christmas lights use LED bulbs which are energy efficient and are long-lasting. Can be used indoor or outdoor and are fitted with 8 mode sequence control unit. This light set can be used as an indoor or outdoor decoration but please ensure that the transformer and control box remain indoors and not in wet and damp or excessively humid conditions. Chaser light modes: combination, sequential, chaser flashing, twinkle flashing, waves, slow glow, slow fade, or steady on. Approximate cable length from transformer to the first bulb: 5 meters. Light length approximately 13.9 meters / combined length 18.9 meters. Non-replaceable LED lights. Complete with indoor use transformer. Transformer rated voltage and wattage: 31V 4VA.