Difference Between On Delay Timer and Off Delay Timer In Tamil

https://goo.gl/S6dX7K In this we have explained On delay timer and off-delay timer.. Learn From This: https://www.electrical4u.net/basic-accessories/on-delay-timer-off-delay-timer-working-principle/ Whatsapp:https://whatsappgroups.net/group/invite/KGqVLDtoKHRCLCcoLnmI9a