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Respondents noted that in the past year they spent more on heating, ventilating, and air conditioning (HVAC) than on any other aspect of energy efficiency, with 58% reporting HVAC improvements. Education came in second, at 87%, followed by building controls, water efficiency, onsite renewable energy and building systems integration at 34%, 46%, 42%, 36%, and 34%, respectively.hot sales single pin 8ft 3000k 4000k 5000k 6500k 36w 8ft led tube high lumens ul led tube light t8 2ft 3ft 4ft 5ft 8ft lamp .There are many factors to take into account in determining whether an LED tube light is cost-effective for a given site. This report focused only on the initial investment, energy use, and system lifetime or replacement needs. Variables included LED tube light cost (two lamps plus separate driver, if needed¡ªtotaling $50, $100, or $140), annual operating hours (3,000 hours or 5,000 hours), LED tube light installation time (15 minutes or 30 minutes or even longer), and melded electricity rate ($0.06/kWh, $0.12/kWh, $0.18/kWh, or $0.24/kWh). Tables allow readers to look up combinations of factors that most closely match their own situation, and simple estimation between values can aid in making rough assessments of economic feasibility for the led tube light replacement projects.The DOE report, however, is quick to make the point that Tcob mcob cob LED efficacy trails LED-based integrated t5 led tube light fixtures significantly. The report reminds that the optical efficiency of linear tubes led lights fixtures into which mcob cob tcob LED tube lamps are installed is typically in the 89% to 92% range and that fact alone puts the LED lamp tubes at a disadvantage relative to integral luminaires.18w188lm 200lumen per watt high quality led tube 3 5 years warranty 120cm super bright t8 led tube lighting with ce rohs .