So here are my findings: The first to LEDs 1 & 2 above (recall both are 10S and around 2000 lm) do light up with the provided adaptor's voltage (recall 24v) but the light is very weak. You may not even notice it is power on during daylight. It is clear that those leds need more than > 2,4 V/each...

All right, if you are looking for: "DPD- 70 -0607 max 18.7V 20 Watt 1050 mA" To find your proper model please note down these values: These bulbs are named usually " LED COB " Modeltype DPD-70 means diameter D-" 70mm " In the above messages it is informed to be ~20W (th...