According to Epson, the company's low - cost lamps offer up to 6,000
hours lamp life in ECO mode, which is defined as low power mode, a mode used to reduce energy consumption.
High frequency tubes reduce energy use and heat output, eliminate flicker and hum,
extend lamp life (by up to 50 per cent) and can allow dimming — all of which can make a classroom more comfortable.
The purifier comes with SteriPEN's
Premium Lamp Life Pledge; when you reach the lamp's lifespan of 8,000 treatments, SteriPEN will replace it with a new unit.
It has a
high lamp life rating at 10,000 hours, a contrast ratio of 400:1, and a resolution of 854 × 480 WVGA.
Other features include Auto Keystone, 1.2 x zoom, and a 10,000 hours
lamp life with Economic Mode.
Solid - state light source lightbulb: Light - emitting - diode (LED) bulbs produce more light with less energy than incandescents, could potentially claim
a lamp life much longer than 10 years, and, unlike compact fluorescents, are free of mercury.
With Acer ExtremeEco technology, it not only cuts down power consumption but also allows up to 6,000 hours of
lamp life.
To qualify, lamps must comply with specifications on energy use, light output,
lamp life, and other operating characteristics.
A 3,500 mAh non-removable battery is included in the device, while the company claims that
the lamp life is 20,000 hours of projecting.
In addition, natural white 775 - watt lamps have
a lamp life of 20,000 - plus hours versus 12,000 for standard metal halide, and depreciate much slower than standard metal halide, Pritchard notes.
One must consider brightness,
lamp life and maintenance, and colors when making [energy - related signage] decisions.