Does your space not get enough sunlight? Give your plant babies the TLC they deserve with this innovative grow light with enough power to stay on for 16 hours a day for 15 years. It offers a highly precise photosynthetic spectrum. We recommend the Small for small to medium houseplants and the Large for medium to large houseplants. Light lasts for 15 years with average use of 16 hrs/day Small: 20 watt, 2000 lumens, 4.35 lbs, 5.8" tall by 3.8" wide Medium: 40 watt, 4000 lumens, 4.7 lbs, 7" tall by 4" wide Includes: LED grow light, 15ft fabric cord, an outlet timer, 3 pack of ceiling hooks, 2 wall fairleads, 1 swag hook, and an instruction guide.