"Anh sang khong chi don thuan la de nhin ro moi vat, no con la linh hon kien tao nen khong gian song va lam viec cua chung ta. Trong ky nguyen hien dai, den LED da tro thanh lua chon toi uu thay the cho cac loai bong den truyen thong. Nhung lam the nao de chon duoc chiec den LED phu hop nhat, vua tiet kiem dien, vua mang lai chat luong anh sang tuyet voi? Bai viet nay se ""bat mi"" nhung kinh nghiem thuc te nhat giup ban chinh phuc the gioi anh sang LED.



Tai Sao Den LED Lai ""Duoc Long"" Nguoi Tieu Dung Den Vay?



Su thong tri cua den LED tren thi truong chieu sang khong phai la ngau nhien. Chung so huu hang loat uu diem vuot troi ma cac cong nghe cu kho long bi kip.



Dau tien phai ke den kha nang tiet kiem nang luong. Den LED tieu thu it dien nang hon toi 80-90% so voi bong den soi dot ma van dam bao do sang tuong duong. Dieu nay truc tiep lam giam hoa don tien dien hang thang cua gia dinh ban.



Thu hai la tuoi tho sieu ben. Mot bong den LED chat luong co the hoat dong lien tuc tu 25.000 den 50.000 gio, gap hang chuc lan so voi bong den huynh quang hay soi dot. Dieu nay dong nghia voi viec ban se khong phai ban tam den viec thay the bong den thuong xuyen.



Cuoi cung, den LED than thien voi moi truong hon. Chung khong chua thuy ngan hay cac chat doc hai khac, dong thoi toa nhiet rat it, giup khong gian mat me hon va giam tai cho he thong dieu hoa.



Hieu Ro Cac Thong So Ky Thuat Quan Trong Cua Den LED



De mua duoc den LED tot, ban can ""nam long"" vai thuat ngu chuyen mon nhung cuc ky thiet thuc sau day:



Nhiet Do Mau Anh Sang (Kelvin – K)



Day la yeu to quyet dinh cam giac ma anh sang mang lai. Nhiet do mau duoc do bang don vi Kelvin (K):



Anh sang vang am (2700K – 3500K): Tao cam giac thu gian, am cung, ly tuong cho phong ngu, phong khach, nha hang.

Anh sang trang tu nhien (4000K – 5500K): Giong anh sang ban ngay, trung tinh, phu hop cho van phong, phong bep, noi can su tap trung vua phai.

Anh sang trang lanh (Tren 5500K): Sang ro, manh me, giup tang cuong su tinh tao, thuong dung trong nha kho, gara, hoac nhung khu vuc can do sang cao.



Chi So Hoan Mau (CRI – Color Rendering Index)



CRI do luong muc do trung thuc cua mau sac vat the duoi anh sang den so voi anh sang mat troi tu nhien. Thang diem CRI tu 0 den 100. Doi voi khong gian sinh hoat va lam viec, ban nen chon den co CRI tu 80 tro len de mau sac noi that va da nguoi trong that nhat. CRI cang cao, chat luong anh sang cang tot.



Cong Suat va Quang Thong (Lumen – lm)



Den led - Nhieu nguoi van nham lan cong suat (Watt) voi do sang. Thuc te, Lumen (lm) moi la don vi do luong do sang thuc te cua bong den. Mot bong den 9W LED co the cho do sang tuong duong bong den 60W soi dot. Khi mua sam, hay tap trung vao chi so Lumen thay vi chi nhin vao so Watt tieu thu dien.



Ung Dung Den LED Phu Hop Cho Tung Khu Vuc Chuc Nang



Moi can phong deu co nhu cau chieu sang rieng biet. Ap dung dung loai den LED se toi uu hoa cong nang va tham my:



Phong Khach: Can su linh hoat. Nen ket hop den tran (downlight) voi anh sang trang tu nhien (4000K) lam anh sang chinh, va dung den trang tri (den ban, den cay) voi anh sang vang am (3000K) de tao diem nhan am cung khi can thu gian.

Phong Bep: Khu vuc can do sang cao va mau sac trung thuc de nau nuong an toan. Uu tien anh sang trang tu nhien (4000K – 5000K) voi CRI cao (>85).

Phong Ngu: Uu tien su thu thai. Anh sang vang diu (2700K – 3000K) la lua chon khong the tot hon. Ban cung nen can nhac den LED co chuc nang dieu chinh do sang (dimmable).

* Goc Lam Viec/Hoc Tap: Can su tap trung cao do. Anh sang trang lanh hon mot chut (khoang 5000K) se giup mat tinh tao va giam moi hon trong thoi gian dai.



Meo Nho Giup Ban ""San"" Duoc San Pham LED Chat Luong Cao



Thi truong den LED hien nay vo cung da dang, tu cac thuong hieu lon den cac san pham khong ro nguon goc. De tranh ""tien mat tat mang"", hay ghi nho nhung meo sau:



1. Kiem tra Thuong hieu va Bao hanh: Cac thuong hieu uy tin thuong co chinh sach bao hanh ro rang va minh bach ve thong so ky thuat tren bao bi san pham.

2. Chu y den Tan Nhiet: Den LED toa nhiet it nhung van can co bo phan tan nhiet tot (thuong lam bang nhom). Neu vo den qua nong khi hoat dong, tuoi tho cua chip LED se bi anh huong nghiem trong.

3. Dung Chi Quan Tam Gia Re: Bong den LED gia qua re thuong la san pham su dung chip LED kem chat luong, nguon dien khong on dinh, dan den hien tuong nhap nhay (flicker) gay hai cho mat va nhanh hong. Dau tu ban dau co the cao hon, nhung ve lau dai, den chat luong se tiet kiem chi phi thay the hon rat nhieu.



Tom lai, viec lua chon den LED la mot quyet dinh thong minh, giup nang cao chat luong cuoc song va bao ve moi truong. Hay danh chut thoi gian tim hieu cac thong so va nhu cau su dung thuc te cua minh, ban se de dang tao ra khong gian chieu sang hoan hao!"



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