TL-50 series signal towers light specifications Model type 1. TL-50LL LED permanent light 12V/40 mA 24V/40mA 110V/25mA 220V/25mA 2. TL-50LF LED flashing light 12V/40 mA 24V/40mA 110V/25mA 220V/25mA 3. TL-50BL Incandescent permanent light 12V/500mA 24V/400mA 110V/90mA 220V/50mA 4. TL-50BF Incandescent flashing light 12V/500mA 24V/400mA 110V/90mA 220V/50Ma 5. TL-50LLI ( c ) LED permanent light discontinuous / continous tone 12V/80mA 24V/80mA 110V/40mA 220V/40mA 6. TL-50LF I ( C ) LED flashing light discontinuous / continous tone 12V/80mA 24V/80mA 110V/40mA 220V/40mA 7. TL-50BL I( C ) Incandescent permanent light discontinuous / continous tone 12V/540mA 24V/440mA 110V/120mA 220V/70mA 8. TL-50BF I 9 ( C ) Incandescent flashing light discontinuous / continous tone 12V/540mA 24V/440mA 110V/120mA 220V/70mA Remark : It's workable in both AC and DC environment as rated voltage is 24V and 110V; but only in DC environment as it's rated voltge is 220V