How much time your Osram Smartlux T5 and Philips Essental T5 lasts « on: August 08, 2022, 10:40:44 AM » Author: dor123
How much time your Osram Smartlux T5 and Philips Essental T5 lasts on your programmed start electronic ballasts? The last Chinese Osram Smartlux T5 HO 54W/865 SL Chinese, lasted one year before relampping on the fixture at the low floor of my hostel and blackened very fast, and the current Chinese Philips Essential TL5 54W/865, showing slight blackening after several days only. The lamps seems to blacken during operation and not during starting, which looks exactly like the American rapid-start ballasts. How much time your Chinese Osram and Philips T5 lamps lasts on a quality programmed start ballast?
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	Re: How much time your Osram Smartlux T5 and Philips Essental T5 lasts « Reply #1 on: August 17, 2022, 02:26:02 AM » Author: bulb_tester2009
The nominal life of the Philips Essential TL5 lamp is 20,000 hours. However, according to my actual use, the two electrodes of the Philips TL5 14W/865 inside the non-preheated electronic ballast headlight in my home are significantly blackened after 1 year of use, but the brightness has not changed.
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	Re: How much time your Osram Smartlux T5 and Philips Essental T5 lasts « Reply #2 on: August 17, 2022, 02:29:03 AM » Author: bulb_tester2009
Quote from: dor123 on August 08, 2022, 10:40:44 AM How much time your Osram Smartlux T5 and Philips Essental T5 lasts on your programmed start electronic ballasts? The last Chinese Osram Smartlux T5 HO 54W/865 SL Chinese, lasted one year before relampping on the fixture at the low floor of my hostel and blackened very fast, and the current Chinese Philips Essential TL5 54W/865, showing slight blackening after several days only. The lamps seems to blacken during operation and not during starting, which looks exactly like the American rapid-start ballasts. How much time your Chinese Osram and Philips T5 lamps lasts on a quality programmed start ballast? The blackening may have been caused by the absence of a cathodic protection ring inside Philips' Chinese version of Essential.
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I've been collecting light bulbs since I was 2 years old and I've been collecting them ever since.
 
One of the few Chinese users here
Note:
Bulb base in China:E12(CES) E14(SES) B22d(BC) E27(ES) E40(GES)

	Re: How much time your Osram Smartlux T5 and Philips Essental T5 lasts « Reply #3 on: August 17, 2022, 06:16:25 AM » Author: dor123
T5 HO and HE don't have a cathode guard usually.
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I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the international date format (dd.mm.yyyy).

I lives in Israel, which is a 220-240V, 50hz country.