Benefits VS Features: 1.Versatility of heat source: Wide range of lamps lengths and power availab-le. 2.instant heat: More than 90% emission within 1 second. 3.Clean: No byproducts,no pollution. 4.Safe:Quartz envelope,heat shock resistant. 5.Economical: More than 85% of consumed energy transmittedinto infrared heat. 6.Fully dimmable: Fully controllable accurately(0% to 100%