8.Efficacy (Lumens Per Watt)
Luminous efficacy is the true measure of a bulb’s efficiency. It indicates the lumens produced for every watt of electricity consumed. LEDs are more efficient than traditional bulbs with a higher luminous efficacy. High quality LEDs have awesome efficacy ratings. The standard luminous efficacy is upwards of 130 lumens per watt.
To calculate luminous efficacy, divide the number of lumens the lamp generates by the watts of electricity it consumes. LED light fixtures with a higher luminous efficacy are more efficient than those with a lower luminous efficacy.
9.Energy savings and maintenance savings - up to 80%
Led street lights offer high-quality light and use fewer watts than traditional HID lighting. What this means is that you will have more intense light but your power bill will decrease. Most of the traditional HID street lights use between 250 and 1000 watts. That does not include the additional 15% energy used for ballast draw.
If we compare this to Led street light, which consume 40 to 300 watts – there is a 40% to 60% reduction in energy. Greater savings when lighting controls are added.
Maintenance costs drops to near zero. Most street lights require a lift to replace or maintain. These jobs are not cheap. Installing a LED fixture that can last 10+ years mean huge maintenance savings.
