that is correct but rnt u a thief
BoomBoom82 Reviewed by BoomBoom82 on . help please hi all, 250w hps 12 hours @ £0.12kwh will cost £0.36 (250w x 12 =3kw x 0.12kwh= 0.36) are my calculations correct????????????please can someone tell me!!!!! i heard on other posts a 250w actually consumes 450w or something is this true.......i was told 250w is 0.25kwh so im really confused and would really appreciate any help morning glory Rating: 5