If an LED fixture has lower initial lumen output than a traditional HID light, how can an LED fixture claim to deliver lumens more efficiently than an HID?
When you average delivered lumens over the course of 60,000 hours, you’ll see that an LED fixture outperforms a 400 watt MH lamp operated in a horizontal position. (60,000 hours is used for this comparison to show three full life cycles of the HID.) The MH’s lumen depreciation, as well as optical and ballast losses, quickly reduce output of the HID system. Note that there are three relamps over 60,000 hours. Conversely, an LED fixture has significantly better lumen maintenance and a more efficient driver. Also note that the LED fixture typically doesn’t need relamping from zero to 60,000 hours. LED outperforms MH over the course of the life of the fixture. Result: the LED’s average delivered lumens is 46% higher than HID over 60,000 hours.
Related Questions
- If an LED fixture has lower initial lumen output than a traditional HID light, how can an LED fixture claim to deliver lumens more efficiently than an HID?
- If an LED fixture has lower initial lumen output than a traditional HID light, how can LED claim to deliver lumens more efficiently than HID?
- Can the light output be made brighter by replacing the LED with an incandescent bulb?
