24 hour mechanical timer for use with any grow light
With twice the number of control pins of a standard mechanical timer, this timer gives you 15 minute precision
Non-removable timer pin design keeps pins safe and secure, and you will never lose your pins again!
Made by one of the best horticultural lighting makers
Grounded outlet allows a wider variety of appliances to be used. I ncludes override switch.
Most commonly used settings are 12, 16. 18 hours per day