... -toxic, non-flammable, non-radioactive, waterproof, windproof 4) No heat, flame and sparks, no battery required 5) Conform to EN71 and ASTM F963 ... ,BANQUET,FESTIVAL,CELEBRATION,BIVOUAC,ETC. CHEMICAL DEPENDABLE LIGHT SORCES PRODUCE NO HEAT,FLAME,OR SPARKS,ARE UNAFFECTED BY WIND OR RAIN ...