New LEDs

[Nodzed]

I bought one already then when it arrived i took out the zed one to discover that had about 6 pins on it and the one i bought only had 3.
If your sidelights are only slightly brighter thats fine pictures like you say camera glaring a bit

That could be the issue, I have found 5 pin ones but no 6 pins so maybe they aren't available?

 

[t-tony]

Ty

Here you go Ian,
http://www.ebay.co.uk/itm/2x-1156-P...Light-Bulbs-/172409588973?hash=item2824698ced

Tony.

 

[Nodzed]

Here you go Ian,
http://www.ebay.co.uk/itm/2x-1156-P...Light-Bulbs-/172409588973?hash=item2824698ced

Tony.

They wont be particularly bright at 7w though will they?

 

[t-tony]

21W. They work well in my car Niall. Had the same ones in my Z3.

Tony.

 

[Nodzed]

Ah OK I know they're 21w input but 7W equivalent output no? or am I talking out of my arse again? which is completley possible

 

[t-tony]

You may well be right mate, all I can say is they are a lot brighter than the original 21w incandescent bulb. I thought that the 7W was the amount of power it needs to produce the bright light, so only 1/3 of that needed for the old style bulb? Hence the power saving?

Tony.

 

[Nodzed]

You may well be right mate, all I can say is they are a lot brighter than the original 21w incandescent bulb. I thought that the 7W was the amount of power it needs to produce the bright light, so only 1/3 of that needed for the old style bulb? Hence the power saving?

Tony.

Ah right, you could well be right mate I was just assuming it was output power as you can buy 21w / 5w right up to 21w / 80w but that does beg the question how you could get 80w output from 21w input! I just confused now.

 

[Redline]

Ah right, you could well be right mate I was just assuming it was output power as you can buy 21w / 5w right up to 21w / 80w but that does beg the question how you could get 80w output from 21w input! I just confused now.

You may be able to detect that christmas day boredom has set in

The Wattage figure quoted is the amount of energy put into to create the light. Halogens typically take 30% less energy to create as much if not more light than a traditional filament bulb. LEDs use 7W to create as much light as a 21W bulb.

In both incandescent and LED bulbs light is created as electrons drop from a high energy state to a lower one. However - Over 80% of the energy put into an incandescent bulb is turned into heat not light - it is that heat that pushes the electrons into a higher energy state but the heat itself is essentially wasted energy.

LEDs are far more efficient since the change is caused directly by quantum effects not heat (although invariably some heat is generated). Also, the light frequency produced in LEDs is far more precise in colour again because of the quantum effects. The overall effect is that LEDs consume far less energy (Watts) to create the same (and frequently greater) amounts of light than a conventional and equivalent incandescent bulb.

Reflectors for traditional bulbs are designed around the mechanical construction of the bulb to reflect the light produced in all directions and focus it into one direction. LED lights, while in the same package, don't emit the light from the same space as filaments but instead from a square area. The light is radiated differently than a normal bulb. Consequently, LED bulbs can actually look dimmer because the reflector itself isn't designed for the LED surface. So, a lower wattage LED can create more light, but, because of the poor matching with the reflector can produce a lower Lux and look less bright! Certainly, in some reflectors you may see a point source rather than an evenly illuminated lens surface.

If you weren't confused before - I'm sure you will be now .....
Some LED replacements may work well in a particular application where another identical power LED may be poor.

All about as clear as mud......


Now, I'm sure is used to be that maximum power for car light bulbs in any application were measured in Watts. I can only assume that something must have changed since if you put a 21W Led bulb you're going to get far more light created than with a 21W bulb. i.e. a tail light would look like a stop light.

 

[Redline]

They wont be particularly bright at 7w though will they?

I can see those working well in the reversing lights because the aperture is quite small - I don't think the reflector can be that effective in that space - probably why they don't throw out much light. A focused LED will throw more light in the direction you want it. I'll give them a try....

Thanks

 

[Stevo7682]

I'm going to throw even more mud into the pie
Another thing to look for which isn't always quoted is the ' lumens '
Lumens is the measure of the actual amount of measurable light produced by the bulb they are starting to quote these figures as they are a better comparison to the light the bulb will give as opposed to the wattage

 

[Nodzed]

I can see those working well in the reversing lights because the aperture is quite small - I don't think the reflector can be that effective in that space - probably why they don't throw out much light. A focused LED will throw more light in the direction you want it. I'll give them a try....

Thanks

Agree the first ones I bought were non projector leds and were OK ish but nowhere near a good as the projector type from horizon, where the reflectors are minimal these definitively direct the light beam.