How to Build a Easy DIY Solar Pool Heater. All you need is 4 two foot lengths of pvc, 4 90 degree pvc elbows, foam pipe insulation, duct tape, 6 mil black plastic and some wire ties. The project takes less than one hour. This design works great for above and in ground swimming pools. http://www.diyeasycrafts.com/
The Solar Pool Light - Hammacher Schlemmer This is the solar light that sets up anywhere inside a pool without wiring and provides bright underwater illumination. Two solar panels on the top of the unit power the internal rechargeable batteries, providing up to 4 hours of light after one day of full sun exposure.