{"id":11931,"date":"2023-09-28T16:18:49","date_gmt":"2023-09-28T08:18:49","guid":{"rendered":"https:\/\/boqiled.com\/?p=11931"},"modified":"2025-11-29T13:53:53","modified_gmt":"2025-11-29T05:53:53","slug":"how-to-fix-flickering-led-lights","status":"publish","type":"post","link":"https:\/\/boqiled.com\/vi\/how-to-fix-flickering-led-lights\/","title":{"rendered":"C\u00e1ch Kh\u1eafc Ph\u1ee5c \u0110\u00e8n LED Nh\u1ea5p Nh\u00e1y"},"content":{"rendered":"
\"B\u1ed9<\/figure>\n\n\n\n

\u0110\u00e8n LED \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 cao nh\u1edd hi\u1ec7u su\u1ea5t n\u0103ng l\u01b0\u1ee3ng v\u00e0 tu\u1ed5i th\u1ecd cao, nh\u01b0ng ch\u00fang \u0111\u00f4i khi c\u00f3 th\u1ec3 xu\u1ea5t hi\u1ec7n hi\u1ec7n t\u01b0\u1ee3ng nh\u1ea5p nh\u00e1y, g\u00e2y kh\u00f3 ch\u1ecbu v\u00e0 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t c\u1ee7a \u0111\u00e8n. B\u00e0i vi\u1ebft n\u00e0y \u0111i s\u00e2u v\u00e0o c\u00e1c lo\u1ea1i nh\u1ea5p nh\u00e1y kh\u00e1c nhau, nguy\u00ean nh\u00e2n c\u1ee7a ch\u00fang v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c, \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u cho \u0111\u00e8n LED.<\/p>\n\n\n\n

<\/p>\n\n\n\n

C\u00e1c lo\u1ea1i nh\u1ea5p nh\u00e1y kh\u00e1c nhau l\u00e0 g\u00ec?<\/h2>\n\n\n\n

Hi\u1ec7n t\u01b0\u1ee3ng nh\u1ea5p nh\u00e1y \u1edf \u0111\u00e8n LED \u0111\u01b0\u1ee3c ph\u00e2n th\u00e0nh hai lo\u1ea1i: nh\u1ea5p nh\u00e1y nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c v\u00e0 nh\u1ea5p nh\u00e1y kh\u00f4ng nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c. Nh\u1ea5p nh\u00e1y nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c c\u00f3 th\u1ec3 nh\u1eadn bi\u1ebft b\u1eb1ng m\u1eaft th\u01b0\u1eddng v\u00e0 c\u00f3 th\u1ec3 g\u00e2y m\u1ea5t t\u1eadp trung v\u00e0 kh\u00f3 ch\u1ecbu. Nh\u1ea5p nh\u00e1y kh\u00f4ng nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c, m\u1eb7c d\u00f9 kh\u00f4ng d\u1ec5 nh\u1eadn bi\u1ebft, nh\u01b0ng v\u1eabn c\u00f3 th\u1ec3 g\u00e2y kh\u00f3 ch\u1ecbu v\u00e0 c\u00e1c v\u1ea5n \u0111\u1ec1 s\u1ee9c kh\u1ecfe nh\u01b0 \u0111au \u0111\u1ea7u v\u00e0 m\u1ecfi m\u1eaft theo th\u1eddi gian.<\/p>\n\n\n\n

Nguy\u00ean nh\u00e2n g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng nh\u1ea5p nh\u00e1y \u0111\u00e8n LED l\u00e0 g\u00ec?<\/h2>\n\n\n\n

Nguy\u00ean nh\u00e2n nh\u1ea5p nh\u00e1y nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c<\/h3>\n\n\n\n

K\u1ebft n\u1ed1i k\u00e9m<\/h4>\n\n\n\n

K\u1ebft n\u1ed1i k\u00e9m ho\u1eb7c l\u1ecfng l\u1ebbo c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn ti\u1ebfp x\u00fac kh\u00f4ng li\u00ean t\u1ee5c gi\u1eefa \u0111\u00e8n LED v\u00e0 ngu\u1ed3n \u0111i\u1ec7n, g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng nh\u1ea5p nh\u00e1y nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c. \u0110i\u1ec1u n\u00e0y th\u01b0\u1eddng do l\u1eafp \u0111\u1eb7t kh\u00f4ng \u0111\u00fang c\u00e1ch ho\u1eb7c hao m\u00f2n theo th\u1eddi gian.<\/p>\n\n\n\n

\"B\u1ed9<\/figure>\n\n\n\n

Linh ki\u1ec7n kh\u00f4ng t\u01b0\u01a1ng th\u00edch<\/h4>\n\n\n\n

S\u1eed d\u1ee5ng c\u00f4ng t\u1eafc \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 s\u00e1ng, b\u1ed9 \u0111i\u1ec1u khi\u1ec3n ho\u1eb7c b\u00f3ng \u0111\u00e8n kh\u00f4ng t\u01b0\u01a1ng th\u00edch c\u00f3 th\u1ec3 g\u00e2y nh\u1ea5p nh\u00e1y do \u0111\u1eb7c t\u00ednh \u0111i\u1ec7n kh\u00f4ng kh\u1edbp. S\u1ef1 kh\u00f4ng t\u01b0\u01a1ng th\u00edch n\u00e0y c\u00f3 th\u1ec3 g\u00e2y ra dao \u0111\u1ed9ng trong d\u00f2ng \u0111i\u1ec7n, d\u1eabn \u0111\u1ebfn \u0111\u1ea7u ra \u00e1nh s\u00e1ng kh\u00f4ng \u1ed5n \u0111\u1ecbnh.<\/p>\n\n\n\n

\"B\u1ed9<\/figure>\n\n\n\n

B\u1ed9 \u0111i\u1ec1u khi\u1ec3n LED qu\u00e1 t\u1ea3i ho\u1eb7c b\u1ecb l\u1ed7i<\/h4>\n\n\n\n

B\u1ed9 \u0111i\u1ec1u khi\u1ec3n qu\u00e1 t\u1ea3i ho\u1eb7c b\u1ecb l\u1ed7i c\u00f3 th\u1ec3 g\u00e2y m\u1ea5t \u1ed5n \u0111\u1ecbnh cho \u0111\u00e8n LED, d\u1eabn \u0111\u1ebfn nh\u1ea5p nh\u00e1y. B\u1ed9 \u0111i\u1ec1u khi\u1ec3n ch\u1ecbu tr\u00e1ch nhi\u1ec7m chuy\u1ec3n \u0111\u1ed5i ngu\u1ed3n AC sang DC v\u00e0 \u0111i\u1ec1u ch\u1ec9nh d\u00f2ng \u0111i\u1ec7n \u0111\u1ebfn \u0111\u00e8n LED. N\u1ebfu n\u00f3 kh\u00f4ng th\u1ef1c hi\u1ec7n hi\u1ec7u qu\u1ea3 c\u00e1c nhi\u1ec7m v\u1ee5 n\u00e0y, hi\u1ec7n t\u01b0\u1ee3ng nh\u1ea5p nh\u00e1y c\u00f3 th\u1ec3 x\u1ea3y ra.<\/p>\n\n\n\n

\u0110\u00e8n LED b\u1ecb l\u1ed7i<\/h4>\n\n\n\n

B\u1ea3n th\u00e2n \u0111\u00e8n LED b\u1ecb l\u1ed7i c\u00f3 th\u1ec3 l\u00e0 ngu\u1ed3n g\u00e2y nh\u1ea5p nh\u00e1y n\u1ebfu c\u00f3 khuy\u1ebft t\u1eadt ho\u1eb7c h\u01b0 h\u1ecfng b\u00ean trong. L\u1ed7i s\u1ea3n xu\u1ea5t ho\u1eb7c h\u01b0 h\u1ecfng trong qu\u00e1 tr\u00ecnh l\u1eafp \u0111\u1eb7t c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn \u0111\u1ea7u ra \u00e1nh s\u00e1ng kh\u00f4ng \u1ed5n \u0111\u1ecbnh.<\/p>\n\n\n\n

\"B\u1ed9<\/figure>\n\n\n\n

Nguy\u00ean nh\u00e2n nh\u1ea5p nh\u00e1y kh\u00f4ng nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c<\/h3>\n\n\n\n
\"B\u1ed9
Nh\u1ea5p nh\u00e1y kh\u00f4ng nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c, th\u01b0\u1eddng c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n qua camera<\/figcaption><\/figure>\n\n\n\n

\u0110\u00e8n LED ngu\u1ed3n AC<\/h4>\n\n\n\n

\u0110\u00e8n LED ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u (AC) c\u00f3 th\u1ec3 bi\u1ec3u hi\u1ec7n nh\u1ea5p nh\u00e1y kh\u00f4ng nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c do t\u00ednh ch\u1ea5t xoay chi\u1ec1u c\u1ee7a d\u00f2ng \u0111i\u1ec7n. Vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i li\u00ean t\u1ee5c gi\u1eefa tr\u1ea1ng th\u00e1i b\u1eadt v\u00e0 t\u1eaft c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn dao \u0111\u1ed9ng trong \u0111\u1ea7u ra \u00e1nh s\u00e1ng, g\u00e2y ra nh\u1ea5p nh\u00e1y kh\u00f4ng nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n

\"B\u1ed9
M\u1ea1ch AC l\u00e0 g\u00ec<\/figcaption><\/figure>\n\n\n\n

\u0110i\u1ec1u ch\u1ec9nh \u0111\u1ed9 s\u00e1ng PWM<\/h4>\n\n\n\n

\u0110i\u1ec1u ch\u1ec9nh \u0111\u1ed9 s\u00e1ng b\u1eb1ng \u0111i\u1ec1u ch\u1ebf \u0111\u1ed9 r\u1ed9ng xung (PWM) c\u00f3 th\u1ec3 g\u00e2y nh\u1ea5p nh\u00e1y kh\u00f4ng nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c v\u00ec n\u00f3 b\u1eadt v\u00e0 t\u1eaft \u0111\u00e8n LED nhanh ch\u00f3ng \u0111\u1ec3 ki\u1ec3m so\u00e1t m\u1ee9c \u0111\u1ed9 s\u00e1ng. M\u1eb7c d\u00f9 ph\u01b0\u01a1ng ph\u00e1p n\u00e0y hi\u1ec7u qu\u1ea3 trong vi\u1ec7c ki\u1ec3m so\u00e1t \u0111\u1ed9 s\u00e1ng, nh\u01b0ng c\u00e1c chu k\u1ef3 b\u1eadt-t\u1eaft nhanh c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn nh\u1ea5p nh\u00e1y kh\u00f4ng th\u1ec3 nh\u1eadn bi\u1ebft nh\u01b0ng v\u1eabn c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ee9c kh\u1ecfe con ng\u01b0\u1eddi. N\u1ebfu b\u1ea1n mu\u1ed1n bi\u1ebft, b\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ecdc b\u00e0i vi\u1ebft n\u00e0y, \ud83d\udc49Kh\u00e1m ph\u00e1 \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 s\u00e1ng PWM trong b\u1ed9 \u0111i\u1ec1u khi\u1ec3n LED: H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n<\/a><\/p>\n\n\n\n

\"B\u1ed9<\/figure>\n\n\n\n
\"B\u1ed9<\/a><\/figure>\n\n\n\n

L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ng\u0103n \u0111\u00e8n LED nh\u1ea5p nh\u00e1y?<\/h2>\n\n\n\n

Nh\u1ea5p nh\u00e1y nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c<\/h3>\n\n\n\n

Ki\u1ec3m tra k\u1ebft n\u1ed1i<\/h4>\n\n\n\n

\u0110\u1ea3m b\u1ea3o t\u1ea5t c\u1ea3 c\u00e1c k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c ch\u1eb7t ch\u1ebd v\u00e0 th\u1ef1c hi\u1ec7n \u0111\u00fang c\u00e1ch l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 tr\u00e1nh ti\u1ebfp x\u00fac kh\u00f4ng li\u00ean t\u1ee5c. Ki\u1ec3m tra v\u00e0 si\u1ebft ch\u1eb7t c\u00e1c k\u1ebft n\u1ed1i th\u01b0\u1eddng xuy\u00ean c\u00f3 th\u1ec3 ng\u0103n ng\u1eeba nh\u1ea5p nh\u00e1y nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c do k\u1ebft n\u1ed1i k\u00e9m.<\/p>\n\n\n\n

Thay th\u1ebf linh ki\u1ec7n kh\u00f4ng t\u01b0\u01a1ng th\u00edch<\/h4>\n\n\n\n

Thay th\u1ebf b\u1ea5t k\u1ef3 c\u00f4ng t\u1eafc \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 s\u00e1ng, b\u1ed9 \u0111i\u1ec1u khi\u1ec3n ho\u1eb7c b\u00f3ng \u0111\u00e8n kh\u00f4ng t\u01b0\u01a1ng th\u00edch b\u1eb1ng c\u00e1c linh ki\u1ec7n t\u01b0\u01a1ng th\u00edch l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 nh\u1ea5p nh\u00e1y. Vi\u1ec7c tham kh\u1ea3o c\u00e1c khuy\u1ebfn ngh\u1ecb v\u00e0 h\u01b0\u1edbng d\u1eabn c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh t\u01b0\u01a1ng th\u00edch gi\u1eefa c\u00e1c th\u00e0nh ph\u1ea7n kh\u00e1c nhau.<\/p>\n\n\n\n

Thay th\u1ebf b\u1ed9 \u0111i\u1ec1u khi\u1ec3n LED<\/h4>\n\n\n\n

N\u1ebfu b\u1ed9 \u0111i\u1ec1u khi\u1ec3n LED b\u1ecb l\u1ed7i ho\u1eb7c qu\u00e1 t\u1ea3i, vi\u1ec7c thay th\u1ebf b\u1eb1ng m\u1ed9t b\u1ed9 \u0111i\u1ec1u khi\u1ec3n ph\u00f9 h\u1ee3p c\u00f3 th\u1ec3 lo\u1ea1i b\u1ecf hi\u1ec7n t\u01b0\u1ee3ng nh\u1ea5p nh\u00e1y. Ch\u1ecdn b\u1ed9 \u0111i\u1ec1u khi\u1ec3n c\u00f3 \u0111i\u1ec7n \u00e1p \u0111\u1ea7u v\u00e0o, \u0111i\u1ec7n \u00e1p \u0111\u1ea7u ra v\u00e0 \u0111\u1ecbnh m\u1ee9c d\u00f2ng \u0111i\u1ec7n ch\u00ednh x\u00e1c l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ea7u ra \u00e1nh s\u00e1ng \u1ed5n \u0111\u1ecbnh.<\/p>\n\n\n\n

Thay th\u1ebf \u0111\u00e8n LED b\u1ecb l\u1ed7i<\/h4>\n\n\n\n

N\u1ebfu b\u1ea3n th\u00e2n \u0111\u00e8n LED b\u1ecb l\u1ed7i, vi\u1ec7c thay th\u1ebf l\u00e0 c\u1ea7n thi\u1ebft \u0111\u1ec3 ng\u0103n ch\u1eb7n hi\u1ec7n t\u01b0\u1ee3ng nh\u1ea5p nh\u00e1y. Vi\u1ec7c ch\u1ecdn \u0111\u00e8n LED ch\u1ea5t l\u01b0\u1ee3ng cao t\u1eeb c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t uy t\u00edn l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 tr\u00e1nh khuy\u1ebft t\u1eadt v\u00e0 \u0111\u1ea3m b\u1ea3o tu\u1ed5i th\u1ecd.<\/p>\n\n\n\n

Nh\u1ea5p nh\u00e1y kh\u00f4ng nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c<\/h3>\n\n\n\n

S\u1eed d\u1ee5ng \u0111\u00e8n LED d\u1ea3i \u0111i\u1ec7n \u00e1p th\u1ea5p DC v\u1edbi b\u1ed9 \u0111i\u1ec1u khi\u1ec3n LED<\/h4>\n\n\n\n

S\u1eed d\u1ee5ng \u0111\u00e8n LED d\u1ea3i \u0111i\u1ec7n \u00e1p th\u1ea5p DC v\u1edbi b\u1ed9 \u0111i\u1ec1u khi\u1ec3n LED t\u01b0\u01a1ng th\u00edch c\u00f3 th\u1ec3 gi\u1ea3m thi\u1ec3u nh\u1ea5p nh\u00e1y kh\u00f4ng nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c. C\u00e1c \u0111\u00e8n n\u00e0y ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u (DC), cung c\u1ea5p \u0111i\u1ec7n \u00e1p \u1ed5n \u0111\u1ecbnh v\u00e0 lo\u1ea1i b\u1ecf c\u00e1c chu k\u1ef3 b\u1eadt-t\u1eaft li\u00ean quan \u0111\u1ebfn ngu\u1ed3n AC, gi\u1ea3m nguy c\u01a1 nh\u1ea5p nh\u00e1y kh\u00f4ng nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n

S\u1eed d\u1ee5ng b\u1ed9 \u0111i\u1ec1u khi\u1ec3n LED l\u00e0m m\u1edd v\u1edbi t\u00edn hi\u1ec7u \u0111\u1ea7u ra CCR<\/h4>\n\n\n\n

T\u00edn hi\u1ec7u \u0111\u1ea7u ra gi\u1ea3m d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i (CCR) trong b\u1ed9 \u0111i\u1ec1u khi\u1ec3n LED l\u00e0m m\u1edd c\u00f3 th\u1ec3 gi\u00fap gi\u1ea3m nh\u1ea5p nh\u00e1y kh\u00f4ng nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y gi\u1ea3m d\u00f2ng \u0111i\u1ec7n \u0111\u1ebfn \u0111\u00e8n LED \u0111\u1ec3 l\u00e0m m\u1edd thay v\u00ec b\u1eadt v\u00e0 t\u1eaft nhanh ch\u00f3ng, t\u1eeb \u0111\u00f3 gi\u1ea3m thi\u1ec3u hi\u1ec7n t\u01b0\u1ee3ng nh\u1ea5p nh\u00e1y.<\/p>\n\n\n\n

\"B\u1ed9<\/figure>\n\n\n\n

S\u1eed d\u1ee5ng b\u1ed9 \u0111i\u1ec1u khi\u1ec3n LED l\u00e0m m\u1edd v\u1edbi t\u00edn hi\u1ec7u \u0111\u1ea7u ra PWM t\u1ea7n s\u1ed1 cao<\/h4>\n\n\n\n

T\u00edn hi\u1ec7u \u0111\u1ea7u ra PWM t\u1ea7n s\u1ed1 cao trong b\u1ed9 \u0111i\u1ec1u khi\u1ec3n LED l\u00e0m m\u1edd c\u00f3 th\u1ec3 gi\u1ea3m thi\u1ec3u nh\u1ea5p nh\u00e1y kh\u00f4ng nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c b\u1eb1ng c\u00e1ch gi\u1ea3m c\u00e1c chu k\u1ef3 b\u1eadt-t\u1eaft c\u1ee7a \u0111\u00e8n LED. T\u1ea7n s\u1ed1 cao l\u00e0m cho hi\u1ec7n t\u01b0\u1ee3ng nh\u1ea5p nh\u00e1y kh\u00f4ng th\u1ec3 nh\u1eadn bi\u1ebft b\u1eb1ng m\u1eaft th\u01b0\u1eddng, gi\u1ea3m thi\u1ec3u kh\u00f3 ch\u1ecbu v\u00e0 r\u1ee7i ro s\u1ee9c kh\u1ecfe. \u0110i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng nh\u1ea5p nh\u00e1y \u0111\u1ed1i v\u1edbi m\u1eaft v\u00e0 camera.<\/p>\n\n\n\n

S\u1ef1 k\u1ebft lu\u1eadn<\/h2>\n\n\n\n

\u0110\u00e8n LED nh\u1ea5p nh\u00e1y c\u00f3 th\u1ec3 g\u00e2y phi\u1ec1n to\u00e1i, d\u1eabn \u0111\u1ebfn kh\u00f3 ch\u1ecbu v\u00e0 c\u00e1c v\u1ea5n \u0111\u1ec1 s\u1ee9c kh\u1ecfe ti\u1ec1m \u1ea9n. B\u1eb1ng c\u00e1ch hi\u1ec3u c\u00e1c lo\u1ea1i v\u00e0 nguy\u00ean nh\u00e2n kh\u00e1c nhau c\u1ee7a hi\u1ec7n t\u01b0\u1ee3ng nh\u1ea5p nh\u00e1y, ng\u01b0\u1eddi ta c\u00f3 th\u1ec3 kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 v\u00e0 gi\u1ea3i quy\u1ebft hi\u1ec7u qu\u1ea3. X\u1eed l\u00fd c\u00e1c k\u1ebft n\u1ed1i k\u00e9m, thay th\u1ebf linh ki\u1ec7n kh\u00f4ng t\u01b0\u01a1ng th\u00edch ho\u1eb7c b\u1ecb l\u1ed7i v\u00e0 s\u1eed d\u1ee5ng b\u1ed9 \u0111i\u1ec1u khi\u1ec3n LED ph\u00f9 h\u1ee3p l\u00e0 c\u00e1c b\u01b0\u1edbc quan tr\u1ecdng \u0111\u1ec3 s\u1eeda \u0111\u00e8n LED nh\u1ea5p nh\u00e1y, \u0111\u1ea3m b\u1ea3o m\u00f4i tr\u01b0\u1eddng tho\u1ea3i m\u00e1i v\u00e0 kh\u00f4ng nh\u1ea5p nh\u00e1y. Ki\u1ec3m tra v\u00e0 b\u1ea3o tr\u00ec th\u01b0\u1eddng xuy\u00ean, c\u00f9ng v\u1edbi vi\u1ec7c ch\u1ecdn linh ki\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng cao, c\u00f3 th\u1ec3 ng\u0103n ng\u1eeba nh\u1ea5p nh\u00e1y v\u00e0 n\u00e2ng cao hi\u1ec7u su\u1ea5t c\u0169ng nh\u01b0 tu\u1ed5i th\u1ecd c\u1ee7a \u0111\u00e8n LED.<\/p>\n\n\n\n

C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n\n\n\n