The Race to the Bottom: LED Bulbs And DFM
Francisco Morrow upravil túto stránku 3 týždňov pred


The dropping value of LED bulbs is accelerating. We examine a few brands to see how they are approaching design and decrease cost manufacturing. You have most likely noticed LED bulbs situated subsequent to the incandescent and compact fluorescent (CFL) bulbs at your native hardware store. I spend means an excessive amount of time in these aisles. That is capitalism at its most interesting! I discover the battle of new tech, smart manufacturing, and big demand intriguing. I've switched nearly all of the lights in our home over to LED partially due to the (small) vitality savings, however principally because I'm lazy: A 22-12 months lifetime means I do not must climb a ladder for EcoLight energy some time. When i purchased my LED bulbs a number of years ago they have been around $15 a pop. As with most all tech, I've watch the worth drop over time. On this case, LED bulbs in my local Residence Depot (Philips 60W) are hovering around $10.


On a latest visit to the lighting aisle I was taken off guard when a pack of two 60W bulbs by Philips were promoting for $5 ($2.50 each!). This isn't just a drop in value, that is an all out value conflict between some heavy hitters. Complicated me was the truth that proper next to these 60W bulbs for $2.50 were 60W bulbs for $10 from the same producer. Upon closer inspection I noticed something odd. These lower price LEDs had a show life of 10 years as opposed to 22. Okay, in order that they shaved some price by shortening the life span of the bulb. Neat advertising and marketing trick but the engineer in me wanted to know the way. Nothing too crazy. Every bulb claimed to be 800 lumen at various EcoLight energy consumption levels (8.5W to 9.5W). And that i solely noticed this now but a budget bulbs are non-dimmable. Laborious to see in the above image however the bulb in the center (cheap Philips) is barely shorter than the costlier Philips bulb.


The TCP is about a centimeter taller. This has little impact on lighting but millimeters of supplies will begin to matter. I did a quick preliminary test to see how the bulbs performed. 13.2W). Maybe the actual LEDs consume 9.5W and the ballast (the thing converting AC to DC) consumes the remainder. This could be a brilliant-sneaky marketing ploy, as I assumed the rating on the outside of the packaging was the overall power consumption of the bulb. All three bulbs had opaque plastic higher bodies. The costly Philips bulb came apart with some sturdy twisting. Underneath was a neat plastic diffuser. Beneath the diffuser was a mixture of small and large LEDs. Not what I might have anticipated - 14 large LEDs, EcoLight smart bulbs 6 small. A, as properly because the date code: 2014-10-14, a delta of 7 months from after i bought the bulb. The date is probably in relation to design model and never manufacture date.


With quite a bit of prying drive, the metal LED PCB comes off the metal base heatsink. This was to be expected