luviacomvnn
8 posts
Mar 19, 2026
12:14 PM
|
"Trong thoi dai cong nghe hien nay, viec lua chon he thong chieu sang cho khong gian song da khong con la mot quyet dinh don gian. Bong den soi dot hay huynh quang ngay xua gio day dang dan nhuong cho cho cong nghe chieu sang tien tien va tiet kiem nang luong hon: den LED. Nhung lam the nao de chon duoc loai den LED thuc su chat luong, khong chi dep mat ma con ben bi va an toan? Bai viet nay se la kim chi nam giup ban tu tin ""san lung"" nhung san pham den LED ung y nhat.
Tai Sao Den LED La Lua Chon Thong Minh Cho Moi Gia Dinh?
Su bung no cua den LED khong phai la ngau nhien. Chung mang lai hang loat loi ich vuot troi so voi cac loai bong den truyen thong. Dau tien phai ke den kha nang tiet kiem dien nang dang kinh ngac. Mot bong den LED co the tieu thu it hon 70-80% dien nang so voi bong den soi dot co cung do sang. Ve lau dai, day la khoan dau tu sinh loi ro ret cho hoa don tien dien hang thang cua ban.
Thu hai la tuoi tho cao. Den LED chat luong co the hoat dong lien tuc hang chuc nghin gio, gap nhieu lan so voi cac loai bong den khac. Dieu nay dong nghia voi viec ban se hiem khi phai lo lang ve viec thay the bong den thuong xuyen.
Cuoi cung, den LED mang lai chat luong anh sang vuot troi. Chung khong phat ra tia UV hay buc xa hong ngoai gay hai, dong thoi cung cap anh sang on dinh, khong nhap nhay, bao ve mat nguoi dung tot hon.
Ba Yeu To Quan Trong Khi Danh Gia Chat Luong Den LED
Khi dung truoc hang tram mau ma den LED tren thi truong, viec phan biet dau la san pham tot la dieu can thiet. Hay tap trung vao ba yeu to cot loi sau day:
1. Chi So Hoan Mau (CRI) – Linh Hon Cua Anh Sang
CRI (Color Rendering Index) la chi so do luong muc do trung thuc cua mau sac vat the khi duoc chieu sang boi nguon sang do so voi anh sang tu nhien (CRI 100). Day la yeu to thuong bi bo qua nhung lai cuc ky quan trong, dac biet trong phong khach, phong bep hay phong lam viec.
CRI duoi 80: Mau sac vat the se bi bien doi, trong nhot nhat hoac sai lech so voi thuc te.
CRI tu 80 den 90: Muc do pho bien, phu hop cho cac khu vuc sinh hoat chung.
CRI tren 90: Duoc coi la anh sang chat luong cao, tai tao mau sac song dong, ly tuong cho showroom, phong trung bay nghe thuat hoac phong trang diem ca nhan.
Hay uu tien cac san pham den LED co chi so CRI tu 85 tro len de dam bao khong gian cua ban luon ruc ro va chan thuc.
2. Nhiet Do Mau (Kelvin – K) – Xac Dinh Khong Gian Cam Xuc
Nhiet do mau (do bang don vi Kelvin) quyet dinh sac thai cua anh sang ma bong den phat ra, tu am ap sang lanh leo. Viec chon Kelvin phu hop se tao ra bau khong khi cam xuc mong muon cho tung khu vuc trong nha.
Anh sang Vang Am (2700K – 3000K): Tao cam giac thu gian, am cung, rat thich hop cho phong ngu va phong an.
Anh sang Trang Tu Nhien (3500K – 4500K): Can bang giua am va lanh, gan gui nhat voi anh sang ban ngay, ly tuong cho phong khach va phong lam viec.
Anh sang Trang Lanh (5000K tro len): Cuong do sang cao, tang su tap trung, phu hop cho nha kho, gara, hoac khu vuc can do chinh xac cao.
Lua chon khong phu hop ve Kelvin co the khien khong gian tro nen kho chiu du bong den co do sang cao.
3. Chip LED va Bo Tan Nhiet – Yeu To Quyet Dinh Tuoi Tho
Den led - Nguon sang LED ben bi hay khong phu thuoc lon vao chip LED (bo phan phat quang) va bo tan nhiet.
Chip LED chat luong cao (thuong den tu cac thuong hieu uy tin nhu Bridgelux, Osram, hay Cree) dam bao hieu suat phat sang on dinh va it bi suy giam quang thong theo thoi gian.
Tuy nhien, chip LED tao ra nhiet. Neu khong co bo phan tan nhiet tot (thuong la cac la nhom day dan), nhiet luong se tich tu, lam hong chip nhanh chong va giam tuoi tho cua bong den. Khi kiem tra den, hay chu y den phan vo den, dac biet la cac loai den cong suat lon nhu den downlight hay den pha. Vo phai duoc lam bang vat lieu dan nhiet tot va co thiet ke toi uu cho viec thoat nhiet.
Dung Quen Van De Dien Ap va He So Cong Suat (PF)
Mot chi tiet ky thuat quan trong khac la He so Cong suat (Power Factor - PF). PF the hien hieu qua su dung dien nang thuc te. Mot bong den LED chat luong phai co PF tu 0.9 tro len. PF thap cho thay bong den dang tieu thu dien nang kem hieu qua va de gay nhieu dien tu.
Hon nua, dam bao den LED ban mua co dai dien ap hoat dong phu hop voi nguon dien luoi nha ban. Mac du nhieu den LED hien dai co dai dien ap rong, viec kiem tra thong so ky thuat se giup phong tranh tinh trang den bi chap chon khi dien luoi khong on dinh.
Ket Luan: Dau Tu Thong Minh Cho Tuong Lai Chieu Sang
Viec mua den LED khong chi la mua mot thiet bi chieu sang, do la dau tu vao chat luong cuoc song va chi phi van hanh lau dai cua ngoi nha. Thay vi chay theo nhung san pham qua re ma khong ro nguon goc, hay danh thoi gian tim hieu ve CRI, Kelvin va cau tao ben trong. Mot cua hang uy tin hoac mot nha phan phoi dang tin cay se cung cap day du thong so ky thuat chi tiet, giup ban dua ra lua chon chuan xac nhat. Anh sang tot la nen tang cho mot khong gian song thoai mai va an toan!"
Xem them: den tha trang tri
|
