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The Race to the Bottom: LED Bulbs And DFM
通过 Leticia De Gruchy (17-09-2025)
The TCP is a couple of centimeter taller. This has little impact on lighting however millimeters of supplies will begin to matter. I did a quick initial check 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 would be a brilliant-sneaky advertising ploy, as I assumed the rating 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 sturdy twisting. Underneath was a neat plastic diffuser. Below the diffuser was a mixture of small and large LEDs. Not what I'd have anticipated - 14 large LEDs, EcoLight 6 small. A, as properly as the date code: 2014-10-14, a delta of 7 months from after i purchased the bulb. The date is probably in relation to design version and not manufacture date.
With quite a bit of prying pressure, the steel LED PCB comes off the metal base heatsink. This was to be anticipated; there was good thermal grease sandwiched between the PCB and the heatsink. Some additional prying and we are able to see the ballast beneath. I bought a bit forceful with a hacksaw so ignore the hack marks for the second. The metal base is threaded onto the plastic base and EcoLight then spot crimped to the plastic (you may see the a number of dots or dimples across the metallic base). This is the first clue that Philips is working on simplifying the manufacturing course of. Furthermore, the two uncovered wires in the image are not soldered to the bottom, they are compressed to it, moreover simplifying the assembly course of. The ballast! Lots of caps, EcoLight smart bulbs an inline fuse, transformer, EcoLight solutions inductor, and a few transistors. C1, C2 and C3 are metalized polyester movie capacitors. Right here is the rear side of the ballast.