MR16 21 SMD warm white LED 4.4W replace 40W halogen lamp

$18.95

Latest product on the market. This MR16 LED lamp uses 21 pieces of high efficiency SMD (Surface Mount Device) LEDs to produce as much light as 100 pieces of common top view super bright 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 lamp produces a 2800K warm white color similar to the light produced by common household incandescent or halogen lamps.

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.

Detailed Specifications:
Socket:	GU5.3 bi-pin (2 pin) 12V DC (most common MR-16 type socket)
Volts:	12V
Watts:	4.1
Lumens:	300
Equivalent Incandescent bulb wattage	40W
LEDs:	21 pieces of SMD, 2800K warm white
Usage:	Down light, spot light
Size:	1.5" H x 2.0" 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.

Model: MR16-12V-21SMD-WW
309 Units in Stock