best keyboards with backlight

Logitech Wireless Solar Keyboard K750

• Solar-powered keyboard: No battery hassles - any light source keeps your keyboard charged for at least three months in total darkness
• Only 1/3-inch thick: Ultra-thin design adds sleek style to your workspace
• Feel-good typing: Logitech-only concave key cap design for faster, quieter, more comfortable typing
• Powerful 2.4 GHz wireless: Enjoy a reliable connection using a tiny Logitech Unifying receiver that stays in your computer
• Works with Windows-based laptop and desktop PCs