I have a Castaldi Lighting D06K/MH150G-AL industrial lamp. It is fitted with an Osram Powerball HCI-T 150W bulb that has a flux of around 15,000 lumen. I find this to be too much and I would like to replace the bulb with something producing less intense light.
Doing a bit of research I have discovered that metal halide lamps are more complicated than the usual household lamps I am used to where a bulb replacement mostly involves figuring out the socket being used. Here is a photo of the label on the circuit inside the lamp:
Is it possible for me to replace the bulb with a similar bulb with a lower power rating (e.g. 70W or even 50W)?
As an alternative, is it possible for me to replace the bulb with a LED bulb? I have seen these being manufactured and sold in China. However, I have no idea what specs to look for to ensure that they will work with my lamp. If the LED bulb requires 230V AC I can bypass the circuit in the lamp. However, a casual search only seems to produce LED bulbs rated at around 1,000 lumen which may be too little.