If you use the two load terminals on the gfci outlet to protect the switch and light then yes you will have the gfci protection.
Pool light wiring gfci.
Sometimes on older sets it can be located just under the light switch itself usually by the back door.
However if you connect the switch to the hot before the outlet by using a wire nut you will not get gfci protection of the light.
Gfci protection is required for all underwater lighting operating over the low voltage contact limit.
As a residential electrical contractor wiring thousands of swimming pool pumps we at hawkins decided to explain some common issues that we find with these breakers.
Wiring a gfci outlet with combo switch outlet receptacle light switch.
The cause can be faulty pool light wiring improper bonding or grounding of equipment failed ground fault circuit interrupters gfci or dropping power tools in the pool.
The gfci outlet itself also works as an electrical outlet to supply most tools and or appliances.
In this gfci outlet wiring and installation diagram the combo switch outlet spst single way switch and ordinary outlet is connected to the load side of gfci.
It means all the connected loads to the load terminals of gfci are protected.
A gfci for a pool light circuit is generally located on the controller box for the equipment.
On in ground pools there must be at least one gfci protected convenience outlet located between 6 feet and 20 feet from the edge of the pool.
Gfci protection is required for all receptacles that supply power to the pool equipment such as water heaters and pump motors.
The national electric code requires that all swimming pool pumps be connected to a gfci breaker.
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In a situation like this it would be best to have a licensed electrician install the necessary gfci protection for the pool light and at the same time take a look at all of the electrical wiring and devices in the area of the pool and then make recommendations about anything that is not up to current electrical code standards.