The Safest, Most Reliable Glow Sticks and Chemical Lights Cyalume light sticks are the safest, most reliable glow devices on the market – guaranteed. Made in the USA under strict quality guidelines, our products are always non-toxic and our patented formulations generate no heat. When you buy Cyalume, you know you’re getting the best your money can buy. Cyalume developed chemical light technology in partnership with the US Navy more than 40 years ago, and now the US military trusts our technology in life and death situations every day. Meets DLA and NAMSA military specifications That commitment to perfection makes its way into our consumer products, as well. Made in the USA under strict quality guidelines, our products are always non-toxic and our patented formulations generate no heat. With an active innovation agenda, we are always ahead of the curve in safety and illumination and users can be confident they are using the very latest and best in chemical light technology. Whether you’re on a family camping trip or scrambling to find a light source during a power outage, you’ll be glad you have Cyalume.