Found these in the clearance bin at wallmar. Cheap source of leds for experiments.
The 75W PAR30L 1000 lumens floodlight on the right has a single led, the Cree 1507N, datasheet lists it as either 18V or 36V,
[edit] i soldered some leads and measured it as 37.3 VDC when it was powered on—it might work in a spotlight with my 40V ryobi packs with a current limiter.
The 65W BR30 700 limens has 10 leds with a couple of zero ohm resistors, the voltage when lit measured 62VDC.
The G4 base T3 led landscape bulb is 12V, 1.5W, 3000K, 120 lumens with 6 leds.
