Why do some irrigation controllers have internal transformer and some have external transformers?

Controllers used outdoors have internal transformers and controllers that are installed indoors have external transformers.

MAIN OFFICE - LEXINGTON

303 Riverchase Way
Lexington, SC 29072

Phone 803-461 -0599
Toll-Free 800-476-4515
Fax 803-461 -0598
Contact Us

MONDAY - FRIDAY
8:00am - 5:00pm

Summer Hours:

Effective March 13, 2021
thru August 28, 2021

SATURDAY
8:00 am - 12:00 pm
Counter Service Only

CHARLESTON

3636 Belvedere Rd.
John's Island, SC 29455

Phone 843-559-3945
Fax 843-559-2740
Contact Us

MONDAY - FRIDAY ONLY
8:00 am - 5:00 pm

GREENVILLE

1330 Grove Rd.
Greenville, SC 29605

Phone 864-295-3810
800-660-7569
Fax 864-295-6990
Contact Us

MONDAY - FRIDAY
8:00am - 5:00pm

GREER

2400 Highway 101 S.
Greer, SC 29651

Phone 864-879-1045
877-835-0714
Fax 864-879-1 046
Contact Us

MONDAY - FRIDAY
7:30am - 5:00pm