Does wattage roughly correlate to par when conparing lights?

[Humble_Reefer]

I'm switching from a 300 watt Viparspectra T300 to 2 Hydra 26 HDs. I'm trying to figure out what to set the Hydras at so that it will be roughly the same par as the T300...

I previously ran my T300 at 35% on the blue channel only. Assuming 100% on both channels is 300 watts, and 35% on one channel would be 52.5 watts (300 x 0.5 x .35). Does this means I should set the hydras to 52 watts output, if I can roughly match the same porportions of blue/violet/UV as the T300 ?

 

[GoVols]

With different leds and lens optics, no

 

[Bpb]

Lenses, reflectors, diode overlap, and brand/bin have every bit as much impact on par as wattage. I would be so bold as to say lenses/optical assistance will impact par far more than wattage will. You really just need a par meter to try and get into an appropriate intensity level range