Description: Cool set of flashing emergency led lights with 15 patterns by combining the settings of 4 switches, besides this, you can also adjust the alternating speed, which can each easily handle 3 Amps (12 lights per channel): 1. Both channels fully turned on at the same time 2. Left channel fully turned on 3. Right channel fully turned on 4. Both channels constantly strobe at the same time (very fast flash) 5. Left channel constantly strobes (very fast flash) 6. Right channel constantly strobes (very fast flash) 7. Both channels constantly flash fast at the same time 8. Left channel constantly flashes fast 9. Right channel constantly flashes fast 10. * Both channels alternate 11. * Both channels alternate, lights of each channel strobe. 12. * Both channels alternate, lights of each channel flash fast (can regulate no. of flashes between alternating) 13. * Both channels alternate between ON and OFF (both channels on/off at the same time) 14. * Both channels alternate between ON and OFF at the same time, lights strobe 15. * Both channels alternate between ON and OFF at the same time, lights flash fast (you can regulate amount of flashes between alternating)