I used a higher value resistor to set the brightness. When the led was pulling 20ma it was too bright - a larger resistor dropped the current to 10ma and the brightness was perfect.Some were too bright so I attenuated them by blacking them out with a black marker. Even completely blacked out, enough light gets through. Suggest you try a little at a time. I'm lucky in that I have a spare connector and able to power up the lights. I turned off the lights in the kitchen before calling it good. You could probably do the same using small connectors to the pins.