homegrowerZA
Member
so iv seen a light that they say gives as many lumens as a hp and has a few more benefits ... its a high bay led 60watt 131lm/w and it will replace my 400watt hps.. now i dont know a fucking thing about 131lms/w.. as i under stand it means how mny lumens u are getting from each watt? here is the link.... (led 60watt) am i right in saying that if its 131ml per wat and there are 60watts u would say (131 x 60)? cause if thats how u work it.. then a 400watt hps would still have more lumens.. even if its 90 to 80lm/w... i just need the formula for lm/w... dont answer if u dont know,, i want to better understand the lm/w ratio