Mosthink 20W Plant Grow Light Strips The Mosthink 20W Plant Grow Light Strips ($16, originally $30) have four different levels of lights that are made up of 32 red and 16 blue LED lights in each bar. They also come with screws and double-sided tape for easy application onto the surface of your choice. Image Source: amazon.com Mosthink 20W Plant Grow Light Strips $16 from amazon.com Buy Now