These lights measure 2.4 x 2.4 x 15.8 inches and are made of ABS plastic. Each light has a brightness of 4 lumens and a color temperature of 5000K. They feature a built-in 1 x 1.2 V AA Ni-MH rechargeable battery and an auto-on sensor for up to 8 hours of illumination. Price drops from $22.99 to just $17.99. Shipping is free with Amazon Prime or is otherwise a flat $6 per order.