1000 Watt HPS Grow Light Coverage of our Efinity line of grow lights is 4' x 4'.  For an indoor grow, the double-ended fixture should be placed at a distance of 4 feet above the canopy growth. The Efinity 1000 watt HPS grow lights maintain the following certifications:

• EMC Certification
• UL Certification
• Rohs Certifications
• LVD Certification
• CU-TR Certification 

• Is there a warranty?  Yes.  3 years