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The dropping cost of LED bulbs is accelerating. We evaluate a number of manufacturers to see how they're approaching design and lower cost manufacturing. You've most likely noticed LED bulbs situated next to the incandescent and compact fluorescent (CFL) bulbs at your native hardware store. I spend manner an excessive amount of time in these aisles. This is capitalism at its most interesting! I find the battle of new tech, smart manufacturing, EcoLight products and EcoLight solutions massive demand intriguing. I've switched virtually the entire lights in our house over to LED in part due to the (small) vitality savings, however mostly as a result of I am lazy: EcoLight A 22-year lifetime means I don't must climb a ladder for some time. Once i purchased my LED bulbs a couple of years ago they had been around $15 a pop. As with most all tech, I've watch the value drop over time. In this case, EcoLight products LED bulbs in my local Residence Depot (Philips 60W) are hovering around $10.

On a current go to to the lighting aisle I used to be taken off guard when a pack of two 60W bulbs by Philips were promoting for $5 ($2.50 each!). This isn't only a drop in price, EcoLight products that is an all out price battle between some heavy hitters. Confusing me was the fact that proper next to these 60W bulbs for $2.50 had been 60W bulbs for $10 from the identical producer. Upon closer inspection I noticed one thing odd. These decrease value LEDs had a show life of 10 years versus 22. Ok, in order that they shaved some cost by shortening the life span of the bulb. Neat advertising trick but the engineer in me wanted to know how. Nothing too loopy. Every bulb claimed to be 800 lumen at various power consumption ranges (8.5W to 9.5W). And that i solely observed this now however the cheap bulbs are non-dimmable. Onerous to see in the above image but the bulb in the middle (cheap Philips) is barely shorter than the costlier Philips bulb.

The TCP is a few centimeter taller. This has little impact on lighting but millimeters of materials will begin to matter. I did a quick initial test to see how the bulbs carried out. 13.2W). Perhaps the precise LEDs eat 9.5W and the ballast (the factor converting AC to DC) consumes the rest. This can be a brilliant-sneaky advertising and marketing ploy, as I assumed the score on the surface of the packaging was the overall power consumption of the bulb. All three bulbs had opaque plastic upper bodies. The expensive Philips bulb got here apart with some robust twisting. Beneath was a neat plastic diffuser. Underneath the diffuser was a mixture of small and EcoLight products huge LEDs. Not what I might have anticipated - 14 big LEDs, 6 small. A, as nicely as the date code: 2014-10-14, a delta of 7 months from when i purchased the bulb. The date is probably in relation to design version and never manufacture date.

With fairly a bit of prying drive, the metal LED PCB comes off the steel base heatsink. This was to be expected; there was good thermal grease sandwiched between the PCB and the heatsink. Some additional prying and EcoLight products we can see the ballast underneath. I bought a bit forceful with a hacksaw so ignore the hack marks for EcoLight dimmable the second. The steel base is threaded onto the plastic base and then spot crimped to the plastic (you can see the a number of dots or energy-saving LED bulbs dimples across the metallic base). That is the first clue that Philips is working on simplifying the manufacturing course of. Moreover, the 2 exposed wires in the picture are not soldered to the bottom, EcoLight products they're compressed to it, additionally simplifying the meeting course of. The ballast! A lot of caps, an inline fuse, transformer, inductor, and some transistors. C1, LED bulbs for home C2 and C3 are metalized polyester film capacitors. Right here is the rear aspect of the ballast.