{"id":1784,"date":"2023-02-20T09:38:19","date_gmt":"2023-02-20T02:38:19","guid":{"rendered":"http:\/\/omllighting.com\/?p=1784"},"modified":"2025-02-06T06:23:54","modified_gmt":"2025-02-05T23:23:54","slug":"huong-dan-chon-nhiet-do-mau-phu-hop-nhu-cau-chieu-sang-cua-ban","status":"publish","type":"post","link":"https:\/\/www.oml.com.vn\/?p=1784","title":{"rendered":"H\u01af\u1edaNG D\u1eaaN CH\u1eccN NHI\u1ec6T \u0110\u1ed8 M\u00c0U PH\u00d9 H\u1ee2P NHU C\u1ea6U CHI\u1ebeU S\u00c1NG C\u1ee6A B\u1ea0N"},"content":{"rendered":"

C\u1ea3i ti\u1ebfn trong c\u00f4ng ngh\u1ec7 LED \u0111\u00e3 \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y v\u00e0 v\u1edbi s\u1ef1 ti\u1ebfn b\u1ed9 c\u1ee7a c\u00f4ng ngh\u1ec7, LED \u0111\u00e3 \u0111\u01b0\u1ee3c cung c\u1ea5p r\u1ed9ng r\u00e3i v\u00e0 r\u1ebb h\u01a1n so v\u1edbi khi n\u00f3 \u0111\u01b0\u1ee3c gi\u1edbi thi\u1ec7u l\u1ea7n \u0111\u1ea7u ti\u00ean. Nh\u1eefng l\u1ee3i \u00edch c\u1ee7a \u0111\u00e8n LED l\u00e0 r\u00f5 r\u00e0ng, ch\u1eb3ng h\u1ea1n nh\u01b0 ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng, tu\u1ed5i th\u1ecd cao h\u01a1n v\u00e0 kh\u00f4ng ch\u1ee9a b\u1ea5t k\u1ef3 lo\u1ea1i kh\u00ed \u0111\u1ed9c h\u1ea1i n\u00e0o nh\u01b0 th\u1ee7y ng\u00e2n, nh\u01b0ng m\u1ed9t c\u00e2u h\u1ecfi khi\u1ebfn nhi\u1ec1u ng\u01b0\u1eddi ph\u1ea3i g\u00e3i \u0111\u1ea7u, \u0111\u00f3 l\u00e0 t\u00f4i n\u00ean c\u00e0i \u0111\u1eb7t nhi\u1ec7t \u0111\u1ed9 m\u00e0u n\u00e0o. B\u00e0i vi\u1ebft n\u00e0y gi\u00fap gi\u1ea3m b\u1edbt c\u00e1c truy v\u1ea5n m\u00e0 b\u1ea1n \u0111\u00e3 mong \u0111\u1ee3i v\u00e0 v\u1edbi \u0111i\u1ec1u n\u00e0y, ch\u00fang t\u00f4i hy v\u1ecdng n\u00f3 s\u1ebd cho ph\u00e9p b\u1ea1n \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh \u0111\u00fang \u0111\u1eafn khi ch\u1ecdn nhi\u1ec7t \u0111\u1ed9 m\u00e0u.<\/p>\n

\"\"<\/p>\n

S\u01a1 l\u01b0\u1ee3c v\u1ec1 l\u1ecbch s\u1eed nhi\u1ec7t \u0111\u1ed9 m\u00e0u<\/strong><\/h2>\n

\u0110o m\u00e0u s\u1eafc c\u1ee7a \u00e1nh s\u00e1ng b\u1eaft \u0111\u1ea7u v\u00e0o cu\u1ed1i nh\u1eefng n\u0103m 1800 khi nh\u00e0 v\u1eadt l\u00fd ng\u01b0\u1eddi Anh William Kelvin ph\u00e1t hi\u1ec7n ra s\u1ef1 thay \u0111\u1ed5i m\u00e0u s\u1eafc x\u1ea3y ra khi \u00f4ng nung n\u00f3ng m\u1ed9t kh\u1ed1i carbon. B\u1eaft \u0111\u1ea7u t\u1eeb m\u1ed9t m\u00e0u \u0111\u1ecf m\u1edd, qua c\u00e1c s\u1eafc th\u00e1i c\u1ee7a m\u00e0u v\u00e0ng v\u00e0 \u0111\u1ebfn m\u00e0u xanh s\u00e1ng \u1edf nhi\u1ec7t \u0111\u1ed9 n\u00f3ng nh\u1ea5t. Ph\u00e1t hi\u1ec7n n\u00e0y \u0111\u00e3 d\u1eabn \u0111\u1ebfn m\u1ed9t thang \u0111o \u0111\u01b0\u1ee3c \u0111\u1eb7t theo t\u00ean c\u1ee7a Kelvin, \u0111o m\u00e0u c\u1ee7a \u00e1nh s\u00e1ng trong m\u1ed1i quan h\u1ec7 v\u1edbi \u0111\u1ed9 C v\u00e0 t\u1ea1o ra m\u00e0u.<\/p>\n

Nhi\u1ec7t \u0111\u1ed9 m\u00e0u l\u00e0 g\u00ec?<\/strong><\/h2>\n

Nhi\u1ec7t \u0111\u1ed9 m\u00e0u \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 ch\u1ec9\u00a0\u0111\u1ed9 \u1ea5m (h\u01a1i cam) ho\u1eb7c \u0111\u1ed9 l\u1ea1nh (h\u01a1i xanh) c\u1ee7a \u00e1nh s\u00e1ng ph\u00e1t ra t\u1eeb b\u00f3ng \u0111\u00e8n. \u0110\u01b0\u1ee3c \u0111\u00f3 b\u1eb1ng \u0111\u1ed9 Kelvin (K) v\u00e0 th\u01b0\u1eddng dao \u0111\u1ed9ng t\u1eeb 3000K \u0111\u1ebfn 6500K.<\/p>\n

Ch\u1ecdn nhi\u1ec7t \u0111\u1ed9 m\u00e0u \u00e1nh s\u00e1ng th\u00edch h\u1ee3p<\/strong><\/h2>\n

\u0110\u00e8n led \u00e1nh s\u00e1ng v\u00e0ng th\u01b0\u1eddng c\u00f3 nhi\u1ec7t \u0111\u1ed9 m\u00e0u \u1edf gi\u1eefa 2700K v\u00e0 3000K, c\u00f3 th\u1ec3 ph\u00e1t ra \u00e1nh s\u00e1ng trong quang ph\u1ed5 m\u00e0u \u0111\u1ecf, cam, v\u00e0ng, t\u1ea1o ra \u00e1nh s\u00e1ng t\u01b0\u01a1ng t\u1ef1 nh\u01b0 \u00e1nh s\u00e1ng m\u1eb7t tr\u1eddi l\u00fac ho\u00e0ng h\u00f4n v\u00e0 b\u00ecnh minh.<\/p>\n

\"\"<\/p>\n

\u00c1nh s\u00e1ng v\u00e0ng t\u1ea1o n\u00ean b\u1ea7u kh\u00f4ng kh\u00ed \u1ea5m c\u00fang, th\u00e2n m\u1eadt, ho\u00e0n h\u1ea3o \u0111\u1ec3 th\u01b0 gi\u00e3n trong ph\u00f2ng kh\u00e1ch hay ph\u00f2ng ng\u1ee7 sao m\u1ed9t ng\u00e0y d\u00e0i l\u00e0m vi\u1ec7c. \u0110\u00e2y c\u0169ng l\u00e0 l\u1ef1a ch\u1ecdn l\u00fd t\u01b0\u1edfng \u0111\u1ec3 t\u1eadn h\u01b0\u1edfng tr\u1ecdn v\u1eb9n nh\u1eefng kho\u1ea3nh kh\u1eafc vui v\u1ebb b\u00ean nh\u1eefng ng\u01b0\u1eddi th\u00e2n y\u00eau trong gia \u0111\u00ecnh.<\/p>\n

\u0110\u00e8n led \u00e1nh s\u00e1ng tr\u1eafng th\u01b0\u1eddng c\u00f3 nhi\u1ec7t \u0111\u1ed9 m\u00e0u t\u1eeb 4000K tr\u1edf l\u00ean, ph\u00e1t ra \u00e1nh s\u00e1ng trong d\u00e3y m\u00e0u xanh th\u01b0\u1eddng th\u1ea5y trong tr\u01b0\u1eddng h\u1ecdc v\u00e0 b\u1ec7nh vi\u1ec7n.<\/p>\n

\u00c1nh s\u00e1ng tr\u1eafng th\u00edch h\u1ee3p v\u1edbi nh\u1eefng kh\u00f4ng gian l\u00e0m vi\u1ec7c v\u00e0 nh\u1eefng c\u00f4ng vi\u1ec7c \u0111\u00f2i h\u1ecfi tinh th\u1ea7n t\u1eadp trung. C\u00e1c nghi\u00ean c\u1ee9u \u0111\u00e3 ch\u1ec9 ra r\u1eb1ng \u00e1nh s\u00e1ng tr\u1eafng gi\u00fap t\u0103ng kh\u1ea3 n\u0103ng t\u1eadp trung v\u00e0 c\u1ea3i thi\u1ec7n n\u0103ng su\u1ea5t l\u00e0m vi\u1ec7c.<\/p>\n

B\u1ea1n mu\u1ed1n t\u1ea1o ra b\u1ea7u kh\u00f4ng kh\u00ed nh\u01b0 th\u1ebf n\u00e0o?<\/strong><\/h2>\n

B\u1ea1n mu\u1ed1n thi\u1ebft l\u1eadp m\u1ed9t m\u00f4i tr\u01b0\u1eddng th\u00e2n thi\u1ec7n cho kh\u00f4ng gian c\u1ee7a m\u00ecnh? B\u1ea1n mu\u1ed1n t\u1ea1o b\u1ea7u kh\u00f4ng kh\u00ed th\u00e2n m\u1eadt cho kh\u00e1ch \u0111\u1ebfn nh\u00e0? B\u1ea1n mu\u1ed1n gi\u1eef nh\u00e2n vi\u00ean hay h\u1ecdc sinh lu\u00f4n t\u1eadp trung? Hay \u0111\u01a1n gi\u1ea3n b\u1ea1n mu\u1ed1n m\u1ed9t kh\u00f4ng gian s\u1ea1ch s\u1ebd v\u00e0 tho\u1ea3i m\u00e1i?<\/p>\n

Tr\u01b0\u1edbc khi ch\u1ecdn mua \u0111\u00e8n led v\u1edbi nhi\u1ec7t \u0111\u1ed9 m\u00e0u th\u00edch h\u1ee3p, h\u00e3y l\u00ean k\u1ebf ho\u1ea1ch v\u1edbi m\u1ed9t nh\u00e0 thi\u1ebft k\u1ebf chi\u1ebfu s\u00e1ng \u0111\u1ec3 tr\u00e1nh nh\u1eefng sai l\u1ea7m t\u1ed1n k\u00e9m kh\u00f4ng \u0111\u00e1ng c\u00f3.<\/p>\n

H\u01b0\u1edbng d\u1eabn ch\u1ecdn nhi\u1ec7t \u0111\u1ed9 m\u00e0u<\/h2>\n

Chi\u1ebfu s\u00e1ng an ninh \/ B\u00e3i \u0111\u1ed7 xe<\/strong><\/p>\n

\"\"<\/p>\n

Nhi\u1ec7t \u0111\u1ed9 m\u00e0u g\u1ee3i \u00fd<\/em><\/strong><\/p>\n

Nhi\u1ec7t \u0111\u1ed9 m\u00e0u t\u1ea1i khu v\u1ef1c n\u00e0y th\u01b0\u1eddng trong kho\u1ea3n 4000K \u0111\u1ebfn 6500K \u0111\u1ec3 cung c\u1ea5p \u0111\u1ee7 \u00e1nh s\u00e1ng \u0111\u1ec3 quan s\u00e1t r\u00f5 r\u00e0ng, t\u1ea1o c\u1ea3m gi\u00e1c an to\u00e0n v\u00e0 g\u00e2y kh\u00f3 kh\u0103n cho c\u00e1c h\u00e0nh vi ph\u1ea1m t\u1ed9i.<\/p>\n

Tr\u01b0\u1eddng h\u1ecdc \/ V\u0103n ph\u00f2ng \/ B\u1ec7nh vi\u1ec7n<\/strong><\/p>\n

Tr\u01b0\u1eddng h\u1ecdc<\/strong><\/p>\n

\"\"<\/p>\n

Vi\u1ec7c h\u1ecdc t\u1eadp c\u1ee7a h\u1ecdc sinh \u0111\u00f2i h\u1ecfi \u00e1nh s\u00e1ng tr\u1eafng (4000K \u2013 6500K) \u0111\u1ec3 t\u1ea1o ra b\u1ea7u kh\u00f4ng kh\u00ed tr\u00e0n \u0111\u1ea7y n\u0103ng l\u01b0\u1ee3ng v\u00e0 t\u1ec9nh t\u00e1o.<\/p>\n

V\u0103n ph\u00f2ng<\/strong><\/p>\n

\"\"<\/p>\n

\u00c1nh s\u00e1ng v\u00e0ng (<4000K) t\u1ea1o n\u00ean kh\u00f4ng gian \u1ea5m c\u00fang v\u00e0 g\u1ea7n g\u0169i, c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t t\u1ea1i khu v\u1ef1c ti\u1ebfp t\u00e2n, ph\u00f2ng \u0103n, khu v\u1ef1c ngh\u1ec9 ng\u01a1i & th\u01b0 gi\u00e3n.<\/p>\n

\u00c1nh s\u00e1ng tr\u1eafng (4000K \u2013 6500K) h\u1ed7 tr\u1ee3 tinh th\u1ea7n, s\u1ee9c s\u1ed1ng v\u00e0 s\u1ef1 t\u0129nh t\u00e1o trong khi gi\u1ea3m m\u1ec7t m\u1ecfi v\u00e0 bu\u1ed3n ng\u1ee7, t\u1eeb \u0111\u00f3 t\u0103ng hi\u1ec7u su\u1ea5t l\u00e0m vi\u1ec7c.<\/p>\n

B\u1ec7nh vi\u1ec7n<\/strong><\/p>\n

\"\"<\/p>\n

Chi\u1ebfu s\u00e1ng b\u1ec7nh vi\u1ec7n c\u1ea7n \u0111\u00e1p \u1ee9ng \u0111\u1ee7 hai \u0111i\u1ec1u ki\u1ec7n: S\u1ef1 tho\u1ea3i m\u00e1i cho b\u1ec7nh nh\u00e2n v\u00e0 t\u1ea7m nh\u00ecn cho y b\u00e1c s\u0129.<\/p>\n

\u00c1nh s\u00e1ng v\u00e0ng (3000K \u2013 4000K) gi\u00fap t\u0103ng s\u1ef1 tho\u1ea3i m\u00e1i cho b\u1ec7nh nh\u00e2n, gi\u00fap h\u1ecd th\u01b0 gi\u00e3n t\u1ed1t h\u01a1n.<\/p>\n

\u00c1nh s\u00e1ng tr\u1eafng (>5000K) v\u00e0 CRI (>90), cho ph\u00e9p y b\u00e1c s\u0129 ti\u1ebfn h\u00e0nh ph\u1eabu thu\u1eadt v\u00e0 qu\u1ea3n l\u00fd thu\u1ed1c, gi\u00fap gi\u1ea3m sai s\u00f3t c\u1ee7a con ng\u01b0\u1eddi trong m\u00f4i tr\u01b0\u1eddng c\u0103ng th\u1eb3ng.<\/p>\n

C\u1eeda h\u00e0ng b\u00e1n l\u1ebb<\/strong><\/p>\n

\"\"<\/p>\n

Ng\u01b0\u1eddi b\u00e1n l\u1ebb th\u01b0\u1eddng ch\u1ecdn \u00e1nh s\u00e1ng v\u1edbi nhi\u1ec7t \u0111\u1ed9 m\u00e0u (3000K \u2013 5000K) v\u00e0 CRI cao (>90)<\/p>\n

Nhi\u1ec7t \u0111\u1ed9 m\u00e0u th\u01b0\u1eddng ph\u1ee5 thu\u1ed9c v\u00e0o m\u1eb7t h\u00e0ng \u0111\u01b0\u1ee3c b\u00e1n v\u00e0 b\u1ea7u kh\u00f4ng kh\u00ed m\u00e0 b\u1ea1n mu\u1ed1n thi\u1ebft l\u1eadp cho c\u1eeda h\u00e0ng.<\/p>\n

Ch\u1ec9 s\u1ed1 ho\u00e0n m\u00e0u CRI cao l\u00e0m n\u1ed5i b\u1eadt m\u00e0u s\u1eafc s\u1ea3n ph\u1ea9m, thu h\u00fat s\u1ef1 ch\u00fa \u00fd c\u1ee7a kh\u00e1ch h\u00e0ng v\u00e0 s\u1eb5n s\u00e0ng mua h\u00e0ng.<\/p>\n

Chi\u1ebfu s\u00e1ng c\u0169ng ph\u1ea3n \u00e1nh h\u00ecnh \u1ea3nh th\u01b0\u01a1ng hi\u1ec7u v\u00e0 thu h\u00fat kh\u00e1ch h\u00e0ng.<\/p>\n

Nh\u00e0 h\u00e0ng th\u1ee9c \u0103n nhanh<\/strong><\/p>\n

\"\"<\/p>\n

Kh\u00e1ch h\u00e0ng th\u01b0\u1eddng t\u00ecm b\u1eefa \u0103n nhanh v\u1edbi gi\u00e1 th\u1ea5p.<\/p>\n

Do \u0111\u00f3 m\u1ed9t m\u00e0u s\u1eafc \u00e1nh s\u00e1ng tr\u1eafng (>5000K) c\u00f3 th\u1ec3 gi\u00fap l\u01b0\u1ee3ng kh\u00e1ch h\u00e0ng v\u00e0o v\u00e0 ra c\u1eeda h\u00e0ng nhanh h\u01a1n v\u00e0 t\u0103ng doanh thu cho c\u1eeda h\u00e0ng.<\/p>\n

Nh\u00e0 h\u00e0ng cao c\u1ea5p<\/strong><\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \"\"<\/strong><\/p>\n

M\u1ecdi ng\u01b0\u1eddi th\u01b0\u1eddng \u0111\u1ebfn nh\u00e0 h\u00e0ng \u0111\u1ec3 h\u1eb9n h\u00f2, t\u1ed5 ch\u1ee9c sinh nh\u1eadt, l\u1ec5 k\u1ef9 ni\u1ec7m,\u2026<\/p>\n

Do \u0111\u00f3 \u00e1nh s\u00e1ng v\u00e0ng v\u00e0 \u1ea5m \u00e1p (<3000K) s\u1ebd gi\u00fap g\u1ee3i c\u1ea3m gi\u00e1c th\u00e2n m\u1eadt v\u00e0 l\u00e3ng m\u1ea1n.<\/p>\n

C\u00f4ng tr\u00ecnh d\u00e2n d\u1ee5ng<\/strong><\/p>\n

L\u1ed1i \u0111i chung (h\u00e0nh lang)<\/strong><\/p>\n

\"\"<\/p>\n

\u00c1nh s\u00e1ng trung t\u00ednh (4200K) v\u1eeba \u1ea5m \u00e1p v\u1eeba cung c\u1ea5p \u0111\u1ee7 \u00e1nh s\u00e1ng \u0111\u1ec3 ng\u0103n ch\u1eb7n t\u1ed9i ph\u1ea1m.<\/p>\n

S\u1ea3nh ch\u1edd kh\u00e1ch s\u1ea1n<\/strong><\/p>\n

\"\"<\/p>\n

T\u01b0\u01a1ng t\u1ef1 c\u1eeda h\u00e0ng b\u00e1n l\u1ebb, \u00e1nh s\u00e1ng kh\u00e1ch s\u1ea1n c\u00f3 th\u1ec3 thay \u0111\u1ed5i t\u00f9y theo th\u01b0\u01a1ng hi\u1ec7u, \u0111\u1ed1i t\u01b0\u1ee3ng kh\u00e1ch h\u00e0ng v\u00e0 \u0111\u1ecba \u0111i\u1ec3m.<\/p>\n

Nh\u00ecn chung nhi\u1ec7t \u0111\u1ed9 m\u00e0u c\u1ee7a \u00e1nh s\u00e1ng t\u1ea1i kh\u00e1ch s\u1ea1n th\u01b0\u1eddng t\u1eeb 3000k \u2013 5000K.<\/p>\n

L\u1ed1i \u0111i v\u00e0 khi v\u1ef1c chung<\/strong><\/p>\n

\"\"<\/p>\n

\u00c1nh s\u00e1ng t\u1ea1i l\u1ed1i \u0111i v\u00e0 khu v\u1ef1c chung c\u1ee7a kh\u00e1ch s\u1ea1n th\u01b0\u1eddng \u0111\u1ed3ng b\u1ed9 v\u1edbi s\u1ea3nh ch\u1edd n\u00ean nhi\u1ec7t \u0111\u1ed9 m\u00e0u t\u1ea1i c\u00e1c khu v\u1ef1 n\u00e0y c\u0169ng t\u01b0\u01a1ng t\u1ef1 nhau.<\/p>\n

Ph\u00f2ng kh\u00e1ch s\u1ea1n<\/strong><\/p>\n

\"\"<\/p>\n

Ph\u00f2ng ngh\u1ec9 kh\u00e1ch s\u1ea1n hi\u1ec7n nay kh\u00f4ng c\u00f2n \u0111\u01a1n thu\u1ea7n l\u00e0 n\u01a1i \u0111\u1ec3 ngh\u1ec9 ng\u01a1i v\u00e0 th\u01b0 gi\u1ea3n. V\u1edbi kinh t\u1ebf ph\u00e1t tri\u1ec3n nhanh ch\u00f3ng, con ng\u01b0\u1eddi \u0111ang c\u00f3 xu h\u01b0\u1edbng \u0111i c\u00f4ng t\u00e1c nhi\u1ec1u h\u01a1n.<\/p>\n

Do \u0111\u00f3, vi\u1ec7c c\u00f3 nhi\u1ec1u m\u00e0u s\u1eafc \u00e1nh s\u00e1ng \u0111\u1ec3 du kh\u00e1ch c\u00f3 th\u1ec3 l\u00e0m vi\u1ec7c v\u00e0 ngh\u1ec9 ng\u01a1i l\u00e0 \u0111i\u1ec1u c\u1ef1c k\u1ef3 quan tr\u1ecdng.<\/p>\n

Nh\u1eefng b\u1ed9 \u0111\u00e8n \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p ch\u1ee9c n\u0103ng chuy\u1ec3n \u0111\u1ed5i m\u00e0u CCT linh ho\u1ea1t r\u1ea5t h\u1eefu d\u1ee5ng v\u00e0 ti\u1ec7n l\u1ee3i \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u t\u1ea5t c\u1ea3 c\u00e1c du kh\u00e1ch.<\/p>\n

Mong r\u1eb1ng nh\u1eefng th\u00f4ng tin tr\u00ean \u0111\u00e3 mang \u0111\u1ebfn cho b\u1ea1n m\u1ed9t c\u00e1i nh\u00ecn r\u00f5 h\u01a1n v\u1ec1 nh\u1eefng ch\u1ee9c n\u0103ng kh\u00e1c nhau c\u1ee7a nhi\u1ec7t \u0111\u1ed9 m\u00e0u v\u00e0 m\u1ee9c \u0111\u1ed9 quan tr\u1ecdng c\u1ee7a ch\u00fang trong \u0111\u1eddi s\u1ed1ng c\u1ee7a ch\u00fang ta. N\u1ebfu b\u1ea1n c\u1ea7n h\u1ed7 tr\u1ee3, t\u01b0 v\u1ea5n v\u1ec1 thi\u1ebft k\u1ebf chi\u1ebfu s\u00e1ng ho\u1eb7c nh\u1eefng v\u1ea5n \u0111\u1ec1 li\u00ean quan, \u0111\u1eebng ng\u1ea7n ng\u1ea1i\u00a0li\u00ean h\u1ec7 ngay v\u1edbi OML\u00aeLIGHTING<\/strong> \u0111\u1ec3 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 t\u1eadn t\u00ecnh t\u1eeb \u0111\u1ed9i ng\u0169 chuy\u00ean gia c\u1ee7a ch\u00fang t\u00f4i.