|
|
|
Home
|
Tech Page Duct tape is like the Force. It has a light side, a dark side, and it
holds the universe together....
Retrofit your Givi trunk brake light The holes in the lens, solder holes in board and height of lamps easily allow removing the incandescent lamps and replacing with LED's. A resistor must be put in line with the wires connecting to this board. Use high output T1 3/4, Wide view angle. I've yet to find a suitable LED (very bright with wide angle) to put in here but I will dang it ! How about some math ? Voltage source (12) minus LED "Forward Voltage*" divided by "Forward Current#" equals the minimum value of resistor you must use in line. *look on LED package for both forward voltage and current. #Typical 20 or 40 mA would be .02 or .40 respectively in this equation. This is a good place to start your resistance value (by the book). I like to slowly decrease the value from here obtaining closer "typical" current and forward voltages. Radio Shack makes a red wide angle LED (Cat# 276-203) for $1.99 each that seems to fit this application pretty good (not great) and I found a 560 ohm resistor to be just right.
Mark Matthews site. Make your own LED array & turn signals running lights
Turn signal running light conversion WARNING: (an after note) After several months of running these dual filament, always on bulbs, I've discovered the lens covers ARE NOT up tohandleing the extra heat and have both started to crack out...damn. NAPA auto parts. LS6233 socket and BP1157 bulbs. I followed Mark Matthews lead on this (see link above). In hindsight I would have lengthened all 3 wires as its getting cramped under the rear cover. The LS6233 socket has no ground so I cut the OEM groundoff spot weld tab and all, flattened it and ground it and the socket down with a Dremel and soldered it on. I ran a 3rd conductor through the tube along side the preexisting 2 by using a stiff piece of wire shoved through and then taped the running light conductor to it and pulled back up and through. I've had water get into my signals before and corrode leading to a failure on the road so while I was into these I siliconed up every place I figured water could enter and also used dielectric grease on the lamp sockets and quick connects. Bill of materials total = $12.27
Reflective clothing
|
