led's faint glow when off. - Page 2

HarryM1BYT · 10th September 2017, 07:14

Quote:

Originally Posted by Arryhall

I replaced all my GU10's in my house with LED lamps, and when I turn the lights off, the LED's glow for a while. The standard halogen ones do not, so I presume it's something to do with the LED's themselves.

Almost all of my home lighting is now LED, none exhibit any glow after switching off. I have no circuits using gadgets which operate by sourcing power in series with lamps, all have a proper neutral.

steve-45 · 10th September 2017, 07:57

Quote:

Originally Posted by VVC-Geeza

I'm about to upgrade the one in my 45 to an led so I'll know what to expect

You don't mention any battery drain so I'm assuming all is well.

I changed the front courtesy light (the only one the 45 has) for the Honda Accord executive type as this has built in map reading lamps.

Have not noticed any additional battery drain and starts first turn of key after 2 weeks in an airport car park.

VVC-Geeza · 10th September 2017, 10:15

I'd be interested to know if the same phenomenon occurs with the 75.

I think Ronnie said he's upgraded his and it doesn't happen?

steve-45 · 10th September 2017, 12:14

Fitted LED's front and rear in the 75, and there is no dim glow when they go out, they work perfectly.

Think the 75 must use a different dimming control system.

HarryM1BYT · 10th September 2017, 12:40

Quote:

Originally Posted by steve-45

Fitted LED's front and rear in the 75, and there is no dim glow when they go out, they work perfectly.

Think the 75 must use a different dimming control system.

Perfectly, apart from the rapid flickering as they dim, due to the PWM style of dimming.

steve-45 · 10th September 2017, 17:07

Quote:

Originally Posted by HarryM1BYT

Perfectly, apart from the rapid flickering as they dim, due to the PWM style of dimming.

Never noticed that before ..... but I do now .... grrrrrrr ,,,,,,,,

VVC-Geeza · 10th September 2017, 18:33

Quote:

Originally Posted by steve-45

Fitted LED's front and rear in the 75, and there is no dim glow when they go out, they work perfectly.

Think the 75 must use a different dimming control system.

Did you fit white led's in your 75?

I fitted blue in the coupe and are tempted to try the same in the 75.

steve-45 · 10th September 2017, 21:47

I fitted white, as I needed the extra light they gave out.

Have also swopped the bulbs in the vanity mirrors in sun visors to LED too.. a great improvement.

Avulon · 11th September 2017, 12:13

Quote:

Originally Posted by HarryM1BYT

Perfectly, apart from the rapid flickering as they dim, due to the PWM style of dimming.

No noticeable flickering with mine - neither do the appear to glow when switched off.

Arryhall · 11th September 2017, 15:49

Actually, I think it may be something to do with the lamps themselves having a slow discharge. We have brand new LED style GU10's at work, and they don't glow when you switch them off, whereas the old LED GU10's that these replaced did, and they are the same fitting.

I can only assume that the glow is from the manufacture of the bulbs with a capacitance discharge slowly ebbing off, and the LED's requiring such a minimal energy source to power that they "glow" upon switch off. Presumably the car interior led's are the same.

I'll know more when I take some lamps home from work, just to check and make sure, you understand.

10th September 2017, 10:15	#13
VVC-Geeza This is my second home 2005 Connoisseur SE 1.8 Turbo,2004 45 1.8 Connoisseur and my beloved 1998 VVC Coupe. Join Date: Nov 2009 Location: Derby. Posts: 8,756 Thanks: 2,022 Thanked 1,016 Times in 739 Posts	I'd be interested to know if the same phenomenon occurs with the 75. I think Ronnie said he's upgraded his and it doesn't happen? __________________

10th September 2017, 12:14	#14
steve-45 This is my second home Rover 75 Saloon CDTi Join Date: Oct 2015 Location: Belvedere Posts: 4,076 Thanks: 108 Thanked 1,089 Times in 774 Posts	Fitted LED's front and rear in the 75, and there is no dim glow when they go out, they work perfectly. Think the 75 must use a different dimming control system.

10th September 2017, 21:47	#18
steve-45 This is my second home Rover 75 Saloon CDTi Join Date: Oct 2015 Location: Belvedere Posts: 4,076 Thanks: 108 Thanked 1,089 Times in 774 Posts	I fitted white, as I needed the extra light they gave out. Have also swopped the bulbs in the vanity mirrors in sun visors to LED too.. a great improvement.

11th September 2017, 15:49	#20
Arryhall Loves to post Rover 75 Join Date: Mar 2017 Location: Biddulph Posts: 486 Thanks: 101 Thanked 145 Times in 90 Posts	Actually, I think it may be something to do with the lamps themselves having a slow discharge. We have brand new LED style GU10's at work, and they don't glow when you switch them off, whereas the old LED GU10's that these replaced did, and they are the same fitting. I can only assume that the glow is from the manufacture of the bulbs with a capacitance discharge slowly ebbing off, and the LED's requiring such a minimal energy source to power that they "glow" upon switch off. Presumably the car interior led's are the same. I'll know more when I take some lamps home from work, just to check and make sure, you understand.