Model: HB-3030 3LED Mier solar flashing solar key chain light key chain, use of amorphous silicon solar cell-powered low-light principle, to make high-quality LED flash light; design of novel, cutting-edge fashion, is a brand publicity craft boutique, is also a novel promotional gifts Features:. using solar energy power supply, as long as bright can save power, button-type switch;. one-time package without batteries, dry in the sun too can can supply, power supply time of up to 10 hours;. layout and design, avant-garde fashion;. novelty advertising, and from different, can be extended to promote your brand to maximize the timeliness;. can screen different patterns, according to the requirements of customers printed LOGO