WHOLESALE AMBER MAGNETIC LED SAFETY LIGHT Brilliant LED's precent a beacon of light visible for up to one mile. Fully portable, needing no wire or connecting hardware. Dual function setch: continuous light and flashing Heavy duty magnet with mre than 50 pounds of holding force. Uses 4 x AA batteries (not included) provide power eliminating the need for external power sources or wiring. Solid state LED technology has a typical lifetime of 10+ years.