Mystery Turn Signals, Help Identify

[JHM]

Hi Guys,

I am trying to identify the below turn signals
I acquired them second or third hand. I have no idea who made them or anything.
They are rather bright, single-chip LED and in a cast housing.
They will be going on my bike as soon as I figure out how to drive them properly

Thanks for any insight!

 

[FinalImpact]

Scan fleabay using various buzz words??? No markings at all. Never seen them.

Breifly power them with a 9v dc battery. See if they survive. If concerned, add in 1k resistor in series before connecting to 12vdc source. This will limit current and reduce odds of chip burnout if they do not have an internal resistor.

Good luck!

 

[JHM]

My google-fu and ebay searching have failed me so far. nothing even remotely close to it.
Figuring out the drive current is less about getting it to just work, and more about knowing the maximum power rating for the particular chip being used.
Initial testing gave me a pretty typical forward voltage (3.5ish) at 300mA which suggests naked led, no internal resistance.

 

[JHM]

Solved.

These are a Watsen Design product drom about 6 years ago.
Design current of about 1.5A