Features: Good functions: The light of the radiant heat coop heater will not cause adverse effects on your pets, keeping them warm and comfortable in the cold winter. Long last: The brooder heater is made of stainless steel, which is well-made, durable, and safe. The stainless steel mesh cover helps prevent the bulb and animals from hurting. Specifications: Material: Stainless Steel Size: about 7.87 x 5.51 inches/ 20 x 14 cm Wire length: about 5.91 ft/ 1.8 m Chain length: about 3.28 ft/ 1 m Package includes: 4 x Chicken coop heater 8 x Bulbs (4 x 175W and 4 x 250W) Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays.