VEVOR 120V AC LED Pool Light, 10 Inch 40W, RGBW Color Changing Inground Swimming Pool Spa Light Underwater, with 50 FT Cord Remote Control, Fit for 10in Large Wet Niches, IP68 & Tested to UL Standards

No, the controller cannot be installed outdoors without an enclosure. Only the light itself is waterproof; the controller must be housed in a proper weatherproof electrical box.

Please see the package content in below link, the link is valid in 3 days: https://we.tl/t-c1DvjnyClA

No, it doesn't have the option of controlling from your phone.