It only appears to be flashing, your eyes are playing tricks on you
5 years
1 month
The mood light will last as long as the bulbs life, which has a lifetime of an average household light bulb. once the bulb burns out, one must replace the bulb with another mood light bulb.
1400 hours
he improved the light bulb when he saw that it did not last long and broke easily
300 hrs
he improved the light bulb when he saw that it did not last long and broke easily
13.5 HRS.
At the time of the light bulb's invention, the term of protection on a patent was 17 years.
A flourescent light bulb lasts between 6000 to 18000 hours.
Exsacly 13.7 hours
13.5 hours
i year
Any where from 3000-6000 hours :)