THAIPHUKET Posted August 29, 2022 Share Posted August 29, 2022 Flickering is not regularly but all the more disturbing. The bulbs are new. How to get under control? Link to comment Share on other sites More sharing options...
Crossy Posted August 29, 2022 Share Posted August 29, 2022 Define "flickering". When on, when off, when there's an extra load? Rapid, slow, random? 1 Link to comment Share on other sites More sharing options...
lopburi3 Posted August 29, 2022 Share Posted August 29, 2022 That seems to be the death march in my experience - seems some just do not last at all, even from major makers. But first would try in another fixture and hope for the best. If same in other fixture store may replace if major brand and really new. What type of bulbs and some or all have this issue? 1 Link to comment Share on other sites More sharing options...
carlyai Posted August 29, 2022 Share Posted August 29, 2022 Sometimes the cheap screw in threads on the socket don't make for good contact. Link to comment Share on other sites More sharing options...
THAIPHUKET Posted August 30, 2022 Author Share Posted August 30, 2022 On 8/29/2022 at 6:58 PM, Crossy said: Define "flickering". When on, when off, when there's an extra load? Rapid, slow, random? It's rapid irregular blinking. Load to the system is normal 220V, no relevant fluctuation, LED BULBS are said to last longer, my experience is mixed in that respect Link to comment Share on other sites More sharing options...
sometimewoodworker Posted August 30, 2022 Share Posted August 30, 2022 8 hours ago, THAIPHUKET said: It's rapid irregular blinking. Load to the system is normal 220V, no relevant fluctuation, LED BULBS are said to last longer, my experience is mixed in that respect It is almost certainly a poor designed circuit that doesn’t have the correct size, possibly any, control circuit. It could be designed for 1 input to be neutral and wired in reverse. The/a way to test is buy a really good quality bulb and see if it also has the problem. 1 Link to comment Share on other sites More sharing options...
Crossy Posted August 31, 2022 Share Posted August 31, 2022 9 hours ago, THAIPHUKET said: Load to the system is normal 220V, no relevant fluctuation Are you using a power logger? You are not going to see short duration dips with any domestic level meter. As @sometimewoodworkersuggested, get a good quality lamp and see if the flicker persists (indicating a supply issue). I've certainly had cheap LEDs start flickering and then failing altogether in the past but the modern ones are much, much better but still not immune from supply blips. 1 Link to comment Share on other sites More sharing options...
sezze Posted August 31, 2022 Share Posted August 31, 2022 9 hours ago, THAIPHUKET said: It's rapid irregular blinking. Load to the system is normal 220V, no relevant fluctuation, LED BULBS are said to last longer, my experience is mixed in that respect They do last longer , normally . Problem in Thailand is 2sided . nr 1 is your 220V fluctuates a lot in Thailand , short spikes both ways , aren't very good for electronics . Nr2 and especially the case for LED is heat . Thailand is many times hot , and heat is a killer for LEDs . 1 Link to comment Share on other sites More sharing options...
lopburi3 Posted August 31, 2022 Share Posted August 31, 2022 9 hours ago, THAIPHUKET said: LED BULBS are said to last longer, my experience is mixed in that respect Actually believe main selling point is cost of use as they only use a fraction of the wattage for same light output. But as anything mass produced at low cost for consumer there will be those that fail with little or no lifespan. As pointed out the quality/reliability has greatly improved but there are still duds. But a new bulb cost is a lot less than chasing our sss as a first check - if that, of a different brand, also has same issues is the time to go deeper. Sez I who just removed a perfectly usable on/off remote module from a light outlet that had flickering from two bulbs (which it turned out were both bad) so now have to unscrew the bulb I want off. 1 Link to comment Share on other sites More sharing options...
stratocaster Posted August 31, 2022 Share Posted August 31, 2022 The Dubai Lamp: “World’s Most Efficient” LED Light Bulb Back in October of 2016, the partnership of Dubai Municipality and Philips Lighting released their Dubai Lamp, a series of the “world’s most efficient commercially available” LED light bulbs. Through their partnership, Philips Lighting and Dubai Municipality created the Dubai Lamp, a light bulb that is said to decrease an electricity bill by 90%. According to a press release on Philips Lighting website, this is the world’s first commercially available light bulb that produces 200 lumen per watt. The Dubai Lamp comes in 4 different light bulb varieties: 1 Watt, equivalent to 25W incandescent light bulb. Lifetime = 15,000 hours, or 15 years based on 1,000 hours a year. 2 Watt, equivalent to 40W incandescent light bulb. Lifetime = 15,000 hours, or 15 years based on 1,000 hours a year. 3 Watt, equivalent to 60W incandescent light bulb. Lifetime = 15,000 hours, or 15 years based on 1,000 hours a year. 3 Watt Spot light bulb, equivalent to 35W or 50W halogen light bulb. Lifetime = 25,000 hours, or 25 years based on 1,000 hours a year. Link to comment Share on other sites More sharing options...
sometimewoodworker Posted August 31, 2022 Share Posted August 31, 2022 3 hours ago, stratocaster said: The Dubai Lamp: “World’s Most Efficient” LED Light Bulb Back in October of 2016, the partnership of Dubai Municipality and Philips Lighting released their Dubai Lamp, a series of the “world’s most efficient commercially available” LED light bulbs. Through their partnership, Philips Lighting and Dubai Municipality created the Dubai Lamp, a light bulb that is said to decrease an electricity bill by 90%. According to a press release on Philips Lighting website, this is the world’s first commercially available light bulb that produces 200 lumen per watt. The Dubai Lamp comes in 4 different light bulb varieties: 1 Watt, equivalent to 25W incandescent light bulb. Lifetime = 15,000 hours, or 15 years based on 1,000 hours a year. 2 Watt, equivalent to 40W incandescent light bulb. Lifetime = 15,000 hours, or 15 years based on 1,000 hours a year. 3 Watt, equivalent to 60W incandescent light bulb. Lifetime = 15,000 hours, or 15 years based on 1,000 hours a year. 3 Watt Spot light bulb, equivalent to 35W or 50W halogen light bulb. Lifetime = 25,000 hours, or 25 years based on 1,000 hours a year. 1 Link to comment Share on other sites More sharing options...
sometimewoodworker Posted August 31, 2022 Share Posted August 31, 2022 I got a few while I was visiting the U.K. this spring 1 Link to comment Share on other sites More sharing options...
sometimewoodworker Posted August 31, 2022 Share Posted August 31, 2022 5 hours ago, stratocaster said: The Dubai Lamp: “World’s Most Efficient” LED Light Bulb But you can not buy them. They are exclusively available in Dubai!!! Link to comment Share on other sites More sharing options...
sometimewoodworker Posted August 31, 2022 Share Posted August 31, 2022 I got a few while I was visiting the U.K. this spring, they are not cheap at £9.99 or ฿2,900 each. Though due to a shipping mixup I actually payed £8.00 each 1 Link to comment Share on other sites More sharing options...
lopburi3 Posted August 31, 2022 Share Posted August 31, 2022 2 minutes ago, sometimewoodworker said: ฿2,900 each. That sure would not be cheap by any standards. ???? Link to comment Share on other sites More sharing options...
bluejets Posted September 10, 2022 Share Posted September 10, 2022 (edited) You need to show what type of LED bulb you have installed into what type of fitting/controller. Most LED small reflector type lamps i.e. those that replace to old dichoric lamps, need to have a matching driver. Even light fittings that had a LED bulb fitted sometimes will give the flickering due to incompatible driver unit. Edited September 10, 2022 by bluejets Link to comment Share on other sites More sharing options...
bluejets Posted September 10, 2022 Share Posted September 10, 2022 (edited) On 8/31/2022 at 1:08 AM, THAIPHUKET said: LED BULBS are said to last longer They do to some degree but worth noting the thousands of hours they used to quote on the packaging has now disappeared. In my experience, and I deal with electrical everyday, is it's normally the driver unit that gives up. Also worth noting the old fluro tubes would regularly last for up to 10 years, albeit at lower light output as they progressed. Edited September 10, 2022 by bluejets Link to comment Share on other sites More sharing options...
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