A triac controller that I've been planning for ages and am finally building. So far it has four channels, but I'm gonna make a second PCB there to house further 4 channels.
The triacs I'm using are rated at 9 amp RMS current, which means that I can control 8*9=72 amps continuous current. On 12 V lamps this means over 800 Watts and if I made the system to handle 230 Volts (which I'm not, because all the insulations would be very, very bad PITA to make properly) it could handle about 16 kW power.... That's the theory at least :D
More to come.