Features: 1.Brand new and high quality.2.High power and low consumption.3.Can be used as miner's light， street light， underground light， lawn light， underwater light， indoors light， wall light， chandelier， embedded light， spot light， corner light and downlight etc.Heat sink is advisable when using the light.Note: The product has positive pole and negative pole. Base pin welding temperature (4mm distant from colloid): 3 seconds welded at 260 Celcius degree.