PAR30 thiab PAR20 qhov muag teev yog ob hom qhov muag teev uas feem ntau siv rau lub hom phiaj teeb pom kev zoo. Thaum lawv yog ob qho tib si ntawm PAR (parabolic aluminized reflector) tsev neeg ntawm qhov muag teev thiab ua haujlwm rau tib lub hom phiaj, muaj qee qhov sib txawv ntawm ob qho uas ua rau lawv haum rau kev siv sib txawv.
PAR30 qhov muag teev loj dua thiab ci dua PAR20 qhov muag teev. Lawv muaj txoj kab uas hla ntawm 3.75 ntiv tes thiab qhov ntev ntawm 4.62 ntiv tes, uas txhais tau hais tias lawv zoo tagnrho rau siv hauv qhov chaw loj xws li chav nyob, chav ua noj, thiab chaw ua haujlwm. Lawv kuj muaj lub kaum sab xis dav dua, feem ntau nyob ib ncig ntawm 40 degrees, uas txhais tau hais tias lawv kis lub teeb sib npaug ntawm thaj chaw loj.
Ntawm qhov tod tes, PAR20 qhov muag teev me me thiab tsis tshua muaj ci dua PAR30 qhov muag teev. Lawv muaj txoj kab uas hla ntawm 2.5 ntiv tes thiab qhov ntev ntawm 3.5 ntiv tes, ua rau lawv haum rau siv hauv qhov chaw me me xws li chav pw, chav dej, thiab hauv tsev. Lawv kuj muaj lub kaum sab xis ntawm ib ncig ntawm 30 degrees, uas ua rau lawv zoo dua rau kev siv teeb pom kev zoo xws li teeb pom kev zoo.
Lwm qhov sib txawv ntawm ob hom qhov muag teev yog lawv cov wattage. PAR30 qhov muag teev feem ntau muaj ntau dua wattage, feem ntau yog li ntawm 35 txog 75 watts, thaum PAR20 qhov muag teev muaj qhov qis dua ntawm thaj tsam ntawm 20 txog 50 watts. Qhov no txhais tau hais tias PAR30 qhov muag teev muaj peev xwm tsim tau ntau lub teeb thiab feem ntau suav hais tias muaj zog ntau dua li PAR20 qhov muag teev.
Hais txog tus nqi, PAR30 qhov muag teev feem ntau kim dua PAR20 qhov muag teev vim lawv qhov loj me thiab ntau dua wattage. Txawm li cas los xij, vim lawv muaj zog ntau dua, lawv tuaj yeem txuag koj cov nyiaj ntawm koj daim nqi hluav taws xob nyob rau lub sijhawm ntev.
Hauv kev xaus, qhov sib txawv tseem ceeb ntawm PAR30 thiab PAR20 qhov muag teev yog lawv qhov loj, qhov ci, thiab lub kaum sab xis. PAR30 qhov muag teev yog qhov loj dua thiab ci dua, nrog lub kaum sab xis dav dua, ua rau lawv zoo tagnrho rau qhov chaw loj dua, thaum PAR20 qhov muag teev me dua thiab tsis tshua pom kev, nrog lub kaum sab xis nqaim, ua rau lawv zoo dua rau qhov chaw me me thiab kev siv teeb pom kev zoo.
