Each solar panel is worth around 250 to 300 W, so for a 2 kW system you will need eight panels, and for a 4 kW system, you will need sixteen.
Revlon's Colorstay Gel Envy Nail Enamel is a longwear nail enamel with a gel-like shine. Flawless, salon quality color with life-resistant wear. Vivid color and brilliant shine! In 30 easy to remove shades. Wide angle brush wraps nails and coat tips for smooth bubble free application.
A recommended cleaner that works great with acyclic tub/shower walls is product called Gel Gloss and can be purchased at your local Home Depot. Some safe and effective cleaners: Kaboom Shower Tub & Tile Cleaner, Tilex Fresh Shower, Greenworks Natuaral Bathroom Cleaner, Windex, Lysol Gel Bathroom Cleaner. You might also try Joy Dishwashing Liquid, since it does not leave film or spots.