A complete fixture of LED PAR56 Pool Light=PAR56 Bulb+Poolhousing+Transformer+Power cable.
The LED Pool Light is installed in swimming pool for human using, so we need to make sure that people is safe when swimming, mostly there are two kinds voltage of pool lamps.
1. AC110V or AC230V
this is high voltage pool lamp, electricity people must make sure there is electricity leaking into water, if not, the people will get an electric shock, so the poolhousing for the lamp must be sealed VERY WELL, but in professional way, high voltage lamp for swimming pool still has dangerous risky which we don't suggest customers use.
People needs to add one transformer to conver home AC110V or AC230V into 12v for the pool lamp, and 12V is safe for human swimming, because the acceptable voltage of human is MAX 36V.
There are two kinds of 12v transformer.
The AC12V is more widely used, because only it can let several multiple color lamps synchronous(showing the same color), but not including the lamps which are controlled by external controlling system in 4 wires(red, green, blue, v+) version.
It is suitable for single color lamp(warm white, white), and one multiple color lamp, or several multiple lamps(customers don't need them show the same color). But there are some pool lamps require AC12V even if it is warm white, so customers have to connect AC12V with it.
We have waterproof, and non-waterproof versions.