This looks like a decent lantern - I like it much better than those weird Leoteks.
Can't judge its lighting properties as I haven't seen it in operation. 147W looks like a quite bright lantern though.
I'd imagine 147W is a 250W HPS replacement. But I've seen lights in that range used to replace 400W HPS. A proper 400W HPS LED replacement should be around 200-something watts.
200W PSMH is less than half the brightness of 400W HPS. 400W PSMH is the only suitable substitute. It's rated for less lumens than 400W HPS but because it's a white light the 400W PSMH and 400W HPS will appear the same brightness.
250W PSMH is 400W MV equivalent (so at best 250W HPS equivalent).
200W PSMH is actually intended to replace 250W probe start MH. 200W PSMH is rated at 19000L, so at best it's suitable to replace 200W HPS. 400W HPS is 51000L. No way a 200W PSMH could be an acceptable replacement; it's less than half the brightness. Even the fact that it's white light can't make up for that.
320W or 350W PSMH is designed to replace 400W probe start MH.
Basically when it comes to a HPS to PSMH conversion, using the same wattage PSMH is the only way to maintain the same light output (you'll get less lumens but the light is white so it looks the same brightness).
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Can't judge its lighting properties as I haven't seen it in operation. 147W looks like a quite bright lantern though.
250W PSMH is 400W MV equivalent (so at best 250W HPS equivalent).
200W PSMH is actually intended to replace 250W probe start MH. 200W PSMH is rated at 19000L, so at best it's suitable to replace 200W HPS. 400W HPS is 51000L. No way a 200W PSMH could be an acceptable replacement; it's less than half the brightness. Even the fact that it's white light can't make up for that.
320W or 350W PSMH is designed to replace 400W probe start MH.
Basically when it comes to a HPS to PSMH conversion, using the same wattage PSMH is the only way to maintain the same light output (you'll get less lumens but the light is white so it looks the same brightness).