Kev nkag siabLED DownlightFais fab (W) vs. Brightness (Lumens)
Taw qhia
Thaum xaiv LED downlights, cov neeg siv khoom feem ntau ntsib tsis meej pem ntawmLub zog (W)thiabLumen tso zis (lm). Tsis zoo li cov teeb pom kev zoo ib txwm muaj, LED kev ua tau zoo sib txawv heev, ua wattage ib leeg yog qhov ntsuas tsis pom kev ci ntsa iab. Phau ntawv qhia no piav qhia yuav ua li cas hloov watts rau lumens thiab pom zoo kev pom zoo rau 5W, 7W, thiab 12W downlights.
1. Wattage vs Lumens:Cov ntsiab lus tseem ceeb
Dab tsi Wattage (W) Measures
Wattage qhiasiv zog, tsis brightness. Piv txwv li:
Lub 60W incandescent teeb siv 60W ntawm lub zog tab sis tsuas yog tawm800 lumens.
Lub 12W LED downlight tuaj yeem tsim covtib lub teeb ci (800lm)thaum siv 80% tsawg zog.
Lumens (lm) ntsuas
Lumens ntsuaspom lub teeb tso zis. Lub lumens siab dua, lub teeb ci dua.
General Conversion Rule rau LED Downlights
| Incandescent sib npaug | LED lub zog (W) | Lumen tso zis (lm) |
|---|---|---|
| 40W | 5W | 400-500 hli |
| 60W | 7W | 600-800 hli |
| 75W | 9W | 900–1,100 dr hab |
| 100W | 12W | 1,200–1,500 dr hab |
* Ceeb Toom: Kev ua tau zoo txawv ntawm hom. High- LEDs zoo (xws li Philips, Cree) yuav tsim 10–20% ntau lumens ib watt.*
2. Koj xav tau lub teeb ntau npaum li cas? (Lumens ib square Meter)
Qhov yuav tsum tau brightness nyob ntawmchav ua haujlwmthiabqab nthab qhov siab. Ntawm no yog tus qauv siv:
| Chav tsev | Pom zoo Lumens / m² |
|---|---|
| Chav pw / Hallway | 100-200 lm/m² |
| Chav nyob / chaw ua haujlwm | 200-300 lm/m² |
| Chav ua noj / Rhiav | 300-500 lm/m² |
| Khw muag khoom / Gallery | 500-1,000 lm/m² |
Kev suav them rau 5W, 7W, thiab 12W Downlights
Xav tias atxheem 2.4m (8 ft) qab nthab qhov siab:
| Downlight Wattage | Lumen tso zis (lm) | Thaj tsam (m²) | Kev siv chav zoo tagnrho |
|---|---|---|---|
| 5W | 4 50 lm | 2-4 m² (20-40 sq ft) | Closets, chav dej me me |
| 7W | 7 00 lm | 3-6 m² (30-65 sq ft) | Chav pw, chav tsev |
| 12W | 1,300 ib | 6-12 m² (65-130 sq ft) | Chav ua noj, chav nyob |
Piv txwv li: A 10m² (108 sq ft) chav nyob xav tau ~ 2,000–3,000 lm. Siv 12W downlights (1,300 lm txhua), koj yuav nruab2-3 teev.
3. Yam cuam tshuam rau Brightness & Efficiency
A. Beam Angle
Nqaim beam (30℃-60 degree)- Teeb pom kev zoo (piv txwv li, teeb pom kev zoo).
Dav dav (90℃-120 degree)- Kev pab dav dav (piv txwv li, chav teeb pom kev dav dav).
7W downlight nrog a90℃beam kaum sab xisnpog thaj tsam ntau tshaj qhov nqaim 30℃tsom teeb.
B. Xim Kub (CCT)
Thaum tsis ncaj qha ntsig txog qhov ci, lub teeb sov (2700K–3000K) tuaj yeem tshwm dimmer dua li txias dawb (4000K–6000K) ntawm tib lub lumen.
C. Fixtures Zoo
Pheej yig LEDstej zaum yuav degrade sai, poob 20-30% brightness nyob rau hauv ib xyoos.
hwm hom(piv txwv li, Cree, Osram) tswj cov lumen ruaj khov rau 50, 000+ teev.
4. Cov piv txwv zoo
Case 1: Chav ua noj teeb pom kev zoo
Chav Loj:12 m² (130 m²)
Yuav tsum tau Brightness:400 lm/m² →4,800 lm os
Kev daws:Nruabplaub 12W downlights(1,300 lm × 4=5, 200 lm).
Case 2: Chav pw Ambient Teeb pom kev zoo
Chav Loj:15 m² (160 sq ft)
Yuav tsum tau Brightness:150 lm/m² →2,250 lm os
Kev daws:Sivpeb 7w downlights(700 lm × 3=2, 100 lm).
5. Tej yam yuam kev uas yuav tsum zam
Piv txwv tias siab dua Wattage=Lub teeb ci dua
A 15W qis- LED zoo yuav dimmer dua li 12W siab- qauv ua haujlwm. Nco ntsoov xyuas lumens.
Overlighting Me Qhov Chaw
Lub 5W downlight (450 lm) yog txaus rau 2m² chav dej. Lub 12W fixture yuav ua rau glare.
Tsis quav ntsej Dimmer Compatibility
Tsis yog -dimmable LEDs siv nrog dimmers yuav flicker los yog ua tsis tiav ntxov.
Xaus
Xaiv txoj cai LED downlight muaj xws li:
Ua ntej lumens tshaj watts(eg, 7W ≈ 700 lm).
Sib piv brightness rau chav loj(5W rau chav txee, 12W rau chav nyob).
Xav txog beam kaum sab xis thiab xim kubrau qhov pom kev teeb pom kev zoo.
Rau cov txiaj ntsig zoo tshaj plaws, xaiv rausiab -CRI (Ntau dua lossis sib npaug rau 80) thiab dimmabledownlights los ntawm reputable hom.
