12V (Low Voltage) Led light bulbs will last much longer than 230Vac (High Viltage) Led bulbs. But ....
The life span of the Led bulbs with 230Vac high voltage is short. Some will fail within few ten hours.
Tested on the high voltage input (HV) Led bulb for 24 hours per day 7 days per week; so far no Led bulb will last more than 3 months. Some bulbs even fail after few ten hours
Tested, the Led chips of the failed HV Led bulb when supply a suitable Low DC Voltage current; they will generate light as normal.
The failure is due to the internal Led driver of the HV Led bulb.
The Led driver is electronic device similar to power supply.
It consists of components such as coil, transformer... and Electrolytic Capacitor (E-Cap). The weakest component of the Led driver or power supply is the E-Cap.
Life span of the good quality E-Cap is about 10 000 hours at the rated working temperature. If the working temperature is reducing by 10 degree Celsius, the life span of the E-Cap can be increased by 1 time. This mean the life span of the E-Cap will increased to 20 000 hours
The Led driver in the HV Led bulbs fail so soon is due to
The above conclusions are my own observation from the Led bulbs I have.
Some opinions on how to use the HV Led bulb to make it “live longer”…
I have had enough of the HV Led bulb. The follow Led bulbs which I am introducing in this page are all only can be powered by 12V.
They can be connected to solar system running in 12V.
OR need a 230Vac to 12V transformer if used at home or office.
* Dimension : Dia 102 mm x 180mm.
How Led save electrical charge in long run?
For Energy Saving bulb; the saving is
The life span of a Led is around 20 000 Hours.
Is the cost of purchasing and replacing of Energy Saving light equal to zero? And the troubles of being unable to see, read ... when the bulb is faulty.
The light beam of the Led Bulb does not flicker and without UV and infrared light. Led light source are used in those special lighting which specially take care of our eyes. When I changed my bedroom lighting to LED bulb, it feel less shining, but it is much clear and soothing for reading books, and looking at the computer screen.
Solar Underground Lamp.
Solar spot Lights.
Led MR16 spot Bulbs.
Led Ceiling lights.
Led flood Lights