is a standard US lightbulb base called an E27
2001年6月22日 · In the lighting industry we referred to the "standard" household 110V. 60/75/100 watt bulb as an A19. The "A" represents roughly the pear shape of the envelope, and the 19 is the diameter of the envelope in 1/8ths of an inch. Added later: After checking, Chris M's "E" designation is also correct -as it defines the BASE of the bulb.
Walmart's store brand 3-way LED bulbs are wired backwards
2018年4月7日 · Not sure whether this belongs in the LED forum or the fixed lighting forum. It's one of those regular household E26/E27 screw LED bulbs that replace the old filament bulbs and save energy. Anyway, Walmart's store brand 3-way LED bulb is wired backwards. That is, when you first turn it on, it';s at the highest setting.
Probe v. Pulse start | Candle Power Flashlight Forum
2013年1月23日 · Informative. I need to remember m59 means pulse, and m155 means probe. Are these random denominations, or does m and the number stand for anything? ... Then there is e27 and e38, large envelope v. small. (I assume larger means it runs cooler.) Googling, so far, I see this bulb coming in frosted, clear, and shatter proof.
How many lumens does 60w incandescent do. - Candle Power …
60W 960 lumen E26/A19 bulb with internal halogen bulb, for one of the few places I still use incans in the house. As for the DX LED bulb, in the absence of any fade test, would treat it like a Lights of America self-dimming showerhead bulb. Sort of like self-flattening tires or self-splitting pants. There is nothing to suggest anything different.
LED MR16 and the heat? | Candle Power Flashlight Forum
2007年4月26日 · I think that heatsinking in MR16's are comparable to GU10 and E27 based replacement bulbs that I have tested resently. When using >= 3 watt emitters, heatsinking in those bulbs just doesn't seem to work very well. Even if the heatsink is massive, like in this bulb:
How to dim LED color from Warm White to cool white
2015年10月27日 · Hi Does anybody know of an LED which has two Elements built in, so that the Color can be changed seemless from warmwhite to coolwhite? I know that Philips has released a bulb which is switchable from warm to cool - but I need to change the lights color seemless. Thanks for all replys
Need yellow GU24 bulbs, is there such a thing?
2004年11月6日 · My first attempt to find a GU24 Yellow Bug Light returned lots of screw-in E27 type CFL Yellow Bug bulbs but no GU24s. I had to tell Google, No! That's not what I want! THIS is what I want! THINK: Cheeseburger AND Lettuce AND Tomatoes but NO Onions! Google is FAR more sophisticated than most people know or bother to take advantage of.
Home Depot is discontinuing the original Cree and TW series bulbs.
2015年2月23日 · In a big room, an 800 lumen bulb just won't cut it, and I don't want to pay $15-$20 for the brighter ones, which is what my Home Depot is still selling them for. If Cree reduces their offerings to only the 4Flow design, I sure hope that they introduce a …
UV light for UV adhesive Cyberbond U3050 | Candle Power …
2015年1月8日 · I have used for PCB at home years ago and I have also noticed that we at our company use same bulbs for curing UV glues ''uncoated mercury vapour'' bulb on 230V AC , 50Hz and you need also ballast too and timer .
Bad experience with MR11 LED replacements - Candle Power …
2006年6月19日 · I had bought a number of LED light bulbs from superbrightleds 3-4 years ago and the only ones I am still using are the E27-WLX1. The 1W Luxeons seem to last much better than the 5mm showerheads. Beam is not too even, bright center dropping off fairly drastically to the sides. Brightness is just insufficient to read comfortably.