Product details:

Led safety light, led color red, shell color yellow, number of leds 16, flashes per minute variable, power source 1 cr123 battery, light output 128, 000 millicandela, lens material polycarbonate, shell material polymer, diameter 4-1/4 in. Dot fmcsa 49 cfr 392. 25, 393. 95g, mutcd type a flashing and type c solid on, mil-spec/mil-std 810, ce certified, rohs compliant restrictionshazardous material powerflare safety lightsultra bright lights use 16 all-direction leds for visibility up to 7 miles. Compact, 1-1/4in h x 4-1/4in -dia. Lights work underwater and in hot or freezing temperatures. 10 Flash patterns including sos and solid-on lantern. Designed to be intrinsically safe with lithium batteries that will never leak. Run up to 100 hr. On 1 battery. Rechargeable light kits plug into a vehicle hot point 12/30vdc.