Hi Guys. I am new to the forum and quite new to electronics. I have just built my self some LED light units for a fish tank. My problem i have is with power supplys for these units. The LED's: 1 Watt LED, 4.6V Max. Driver: Each driver can handle 1 x 3 Watt Led OR 3 x 1 Watt. The setup: 3 x 1 Watt LED's on 1 driver. So my problem is this. I have two 12 V Adapters (Both from other devices). a. 500mA b. 1667mA Now if my calculations are correct i work out: a = 6 Watts. b = 2 Watts Is this correct? If this is correct am i likely to burn out the LED's connected to a because it is delivering a higher power than a. the driver can handle and b. the LED's can handle? Is there any way i can run both of these circuits of 1 adapter possibly a PC PSU? Additionally, i have many 12v devices all with individual adapters on my tank. Is it possible to have a device that i can build or purchase that will allow me to cut these off and use one single point? p.s. apologies if these questions are plain stupid its been 11 years since i last did anything of this sort.