In preparation for TU12 on minecraft Xbox 360 edition,which adds redstonelamps, I've decided to make a redstone lamp system with a switch. Some of the lamps will be underwater, so I plan to use a setup like this one: Switch is on the left, redstone lamps are the purple blocks, the triangles are repeaters and the blue blocks are water. Would a setup like this work on the PC version or would the water interfere? (I'm assuming the PC redstone lamps will have the same properties as the Xbox ones).
Yes, redstone lamps work well underwater, but light does not travel as far in water as it does in air; it falls by three levels per block it travels through, instead of one; so you might want more lamps so you don't lose the full light effect.