Thursday, February 21, 2013

LED Signal and Brake Lights

I now have the new version of the LED lights here to try out.  They are similar to our old ones which were no longer available.  My supplier did eventually find someone that could make them up provided I bought enough.  Luckily the minimum number is quite low so I could get some to try out.  The previous lights were mounted of the 20 mm aluminium disk that acts as the heat sink.  The new ones are now mounted on aluminium strips so they are lots easier to install. 
The longer skinny one is to fit in the back of the Milan.  The trailing edge of the Milan is not very wide so they are only .3" wide.  I will cut a hole in the trailing edge and then bond in a clear casting resin block with the LED strip attached to the back of with air space so the heat sink function of the aluminium strip still works.  I will then round the block to match the shape of the velomobile.  Some sanding with fine grits and polishing will finish the job.   I thought of just casting the lights into a block but they get a bit too hot for that.  The LEDs in the long narrow strip are red and the other are amber.  They are each 2 watt LEDs so each light will be 6 watts. 
Here you can see the lights in comparison to the tail lights of a Honda CRV.  The camera makes the LED in the middle look a bit less bright than it really is.  When I picked up the lights off the back of the spare tire I touched the aluminium strip and got a small burn for my trouble.  So they get plenty warm. 
Not quite as bright as the brake lights but still much better than a 1W LED.  

1 comment:

  1. Those look nice! More light never hurts! Mine are still going strong on the original Aurora as well.