Latest product on the market. This PAR20 light bulb uses 12 pieces of
high efficiency SMD (Surface Mount Device) LEDs to produce as much light as 60
pieces of common top view LEDs. Due to it's surface mount design, the heat
dissipation is more efficient and that translate into more power output and
longer life. At its peak efficiency, it produces over 70 lumens per watt, which is
about 10X more efficient as incandescent bulbs and 2~3x more efficient than a
compact fluorescent bulb! This is the ultimate power saving light bulb! It also
lasts over 50,000 hours. If you keep it on 8 hours a day, 365 days a year, it
won't burn out in 17 years! Please refer to the household lighting technology
comparison table for the benefit of switching to LED lighting
This
LED bulb produces a 2800K warm white color similar to the light produced by
common household incandescent light bulbs
Comparison of common household lighting technology:
| |
Incandescent light bulbs |
Fluorescent tubes and compact fluorescent light bulbs |
LED light bulbs |
| light emission principle |
high temperature tungsten filament emits visible light along with
infrared(heat) lightwaves |
electron excited mercury vapor emits UV, which is absorbed by
phosphor and re-emit as visible light |
Electrolumninescence |
| Efficiency |
Very low, only 3%~8% energy converted to light. most
wasted as heat |
higher, between 10%~20% energy converted to light.
The rest wasted as heat |
Highest, 20%~45% energy converted to light |
| Lifespan |
short, 1000~2000 hours |
10000 hours |
50000~100000 hours |
| Cost to acquire |
around $1 (for a 40W bulb) |
around $3 (for a 9W CFL bulb that's equivalent to
40W incandescent) |
around $17 (for a 4.4W SMD LED bulb equivalent to 40W
incandescent) |
| Cost to maintain over 20 year period (8 hrs/day) |
$59 in replacement bulbs (59 bulbs)
$467 in electricity (0.2/KWh)
total: $526 |
$15 in replacement bulbs (5 bulbs)
$105 in electricity (0.2/KWh)
total: $120 |
$0 in replacement bulb (still
working)
$51 in electricity (0.2/KWh)
Total: $51 |
| Total carbon emission over 20 years* (8 hrs/day) |
3130 pounds of Carbon Dioxide for a single
light bulb |
704 pounds of Carbon Dioxide |
344 pounds of Carbon Dioxide |
| Safety |
danger of burning skin when hot and may cause fire in
household |
highly toxic mercury vapor! |
None, completely safe. won't burn fingers when
touched. Nontoxic |
| Environmental impact |
lots of burnt out bulbs become garbage, difficult to
recycle. Lots of wasted electricity= more carbon emmision |
Mercury leak. Special handling and recycle required |
Very little. You only need to replace it twice or 3
times in your lifetime. Nontoxic. Highest efficiency means less wasted
energy and less carbon emmissions |
| Sturdiness |
Fragile, sensitive to water and uneven temperature |
Fragile, sensitive to voltage fluctuations and
frequent on/off |
rugged and robust. Suited for use under extreme
conditions. |
| Instant on & Flicker |
Instant on, flicker free |
takes 5 to 10 minutes to reach peak output, may
flicker nad cause eye strain and headache |
Instant on, flicker free |
| Easy to find? |
Everywhere |
Everywhere |
Hard to find in your local stores, but you can
always order from us. We offer best price and quality, as well as fast
and even free shipping(when you order $50 or more) |
*
It's estimated currently in the US there's 1.34lb of CO2
released into atmosphere per every KWh electricity generated. This figure might
drop as we switch to renewable energy.
|
Socket: |
Common household medium screw base (E26) |
|
Volts: |
110~120V |
|
Watts: |
2.4 |
|
Lumens: |
180~200 |
|
Equivalent Incandescent bulb wattage |
35W |
|
LEDs: |
12 pieces of SMD, 2800K warm white |
|
Usage: |
Down light, spot light |
|
Size: |
3.0" H x 2.4" Dia. |
|
Warranty: |
2 Years |
****Please be aware that many stores sell LED light bulbs that claim to
replace 40W or even 60W light bulbs. You need to look into detailed specs and
see what's the total lumen output because that's the only thing matters. Don't
be fooled by the number of LEDs in the light bulb. Some cheaper LED bulb uses 60
or even 80 LEDs yet only put out less than 200 lumens, while other professional
LED bulbs use only a few high power LEDs and put out 500 or even 1000 lumens.
The wattage of the LED bulbs are misleading as well. We once found a big chain
store selling a 4W LED light bulb made by GE, yet in the fine print it can only
product 100 lumens. At 25 lumens/Watt, it's not even as efficient as a compact
fluorescent light bulb that costs 5 times less. So please find out what's the
total lumen output of the LED product before you buy!
Volume discount available!
Special: BUY 5 GET 6! For
a limited time, when you buy 5 pieces of this item, you will get the 6th free!
All you have to do is to order 5 pieces, or any multiples of 5, you will receive
6 pieces, or multiples of 6. That's almost 20% savings! Restrictions* apply.
*Restrictions: To qualify for the free item, you must buy 5
pieces of identical item, or any multiples of 5 of the same item. By default,
the free item you receive will also be the same as the ones you order. You may,
however, choose to receive a different item of equal or less value. You must
email us immediately (within 24 hours) if you want a different item. If you are
not satisfied with the product you receive, you must return all 6 or multiples
of 6 to receive a full refund. Return shipping charge is customer's
responsibility. Our warranty also covers the free bulb.