Br30 txhais li cas?
Br30 txhais li cas?

Video: Br30 txhais li cas?

Video: Br30 txhais li cas?
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Anonim

Reflector (R) lossis Bulged Reflector ( PAB) 30 qhov muag teev muaj ib txheej txheej reflective nyob rau sab hauv ntawm lub teeb uas coj lub teeb rau pem hauv ntej. Hom dej nyab (FL) thiab coj lub teeb dej nyab teeb ci. Cov hom pom (SP) mloog zoo rau lub teeb.

Ua kom pom qhov no, qhov txawv ntawm br30 thiab br40 yog dab tsi?

Cov qhov sib txawv ntawm ua BR20, BR30, thiab BR40 yog qhov loj lossis txoj kab uas hla ntawm lub teeb. Tus lej sawv cev nce ntxiv ntawm 8th ntawm ib nti. Piv txwv li, a BR30 yog 30/8ths ntawm ib nti lossis 30 faib los ntawm 8 uas sib npaug 3.75 ″ txoj kab uas hla.

Ib yam nkaus, qhov sib txawv ntawm par 30 thiab 38 yog dab tsi? Tam sim no cov xov xwm phem: PAR38 thiab PAR 30 hais txog lub cev yam ntxwv ntawm qhov muag teev. PAR = Parabolic Aluminized Reflector, 38 = peb caug yim-yim yim yim ntawm ib nti, lossis 38 *1/8"=4.75". 30 = peb caug yim thib yim ntawm ib nti, lossis 30 * 1/8 "= 3.75" Raws li koj tuaj yeem pom, PAR38 muaj txoj kab uas hla ntau dua li a PAR 30 noob los yog tau.

Hais txog qhov no, br30 teeb txhais li cas?

Bulged Reflector

par30 txhais li cas?

Parabolic aluminized reflector ( PIB) 30 qij tswj lub teeb kom meej dua. Lawv tsim txog plaub npaug ntawm cov teeb pom kev zoo ntawm cov kev pabcuam dav dav A duab incandescents, thiab siv nyob rau hauv recessed thiab taug qab teeb pom kev zoo. Zoo li txhua lub teeb pom kev zoo, 30 tus nqi nruab nrab yog txoj kab uas hla ntawm lub teeb 18 ntawm ib nti.

Pom zoo: