澤輝多年來一直用音樂和電腦程式編寫侍奉主。他為不同的教會創建了會員和計電腦聖經軟件。他曾經製作合唱音樂，創作音樂和製作大量福音音樂視頻。此外，他還贏得了許多的攝影獎，並贏得了50多個音樂獎項（包括最佳攝影，最佳音樂視頻，最佳歌曲，最佳音樂製作人和最佳作曲）。他曾是一名眼科醫療儀器研究科學家(Senior Research Scientist)，負責研發部門開發高功率激光治療青光眼。
他是「輝煌聖樂」粵語卡拉OK音樂的創始人和製作者，藉音樂傳福音。 該團隊前往世界各地，參加福音卡拉OK音樂分享會(不會收任何講員費或奉獻)。他曾是灣區AM1400/FM 93.7星期六下午三點粵語福音音樂節目「生命樂音」的主持人。他也曾在羅省AM1430,am1430.net主持「生命樂音」和「神光天地線」。他已經退休，全時間投入粵語詩歌的創作和推廣事工， 完成神給他的託付。
他是加利福尼亞州芳泉谷浸信會的會員。鄭博士擁有B.S.E.E，M.S.E.E 和 Ph.D. in Computer Science並有七項美國電腦科學發明的專利 (7 U.S. Patents)。
版權許可聲明和致謝：鄭澤輝博士保留了他創作和製作的歌曲和音樂視頻的所有版權。 它們都被確認為知識共享組織（CC1）。 換句話說，未經鄭博士書面同意，它們可用於非商業目的。 不得大規模生產和分配。 但是，必須播放音樂視頻開頭的前10秒信用確認，並且不能更改。澤輝編寫，修改和編曲了大部分音樂視頻，並拍攝了大部分照片和視頻。 包含受版權保護內容（例如原創旋律和視頻）的音樂視頻遵循標準的YouTube 許可，這意味著所有廣告的金錢利益都歸於版權擁有人，否則音樂視頻是免費沒有廣告的。
Biography of Fai Cheng Ph.D.:
Fai has been serving the Lord with music and computer programming for many years. He created membership and Computer Bible Software for different churches. He used to conduct a Cantonese choir. He composes music and produces many gospel music videos on YouTube/Youku. Furthermore, he won numerous photography awards and won over 50 musical awards (including best photographer, best music video, best song, best music producer and best song writer).He worked as an ophthalmology research scientist and headed up a R&D department to develop high power laser to cure Glaucoma. He is the founder of 輝煌聖樂 and produces contemporary Cantonese gospel karaoke music to further God’s kingdom. His team is available to visit different churches in various parts of the world to give testimonies and to present Cantonese gospel karaoke songs(free of charge). He hosted a Cantonese Gospel program「生命樂音」in AM1400/FM 93.7 San Francisco and the programs were also aired in AM1430,am1430.net Los Angeles. He is a member of First Chinese Baptist Church in Fountain Valley, California. He has retired from his Engineering job. He devotes most of his time to produce more Cantonese Gospel songs, fulfilling the vision that God gave him. Dr. Cheng holds a B.S.E.E, M.S.E.E and Ph.D. in Computer Science with 7 U.S. patents.
Licensing declarations and acknowledgements: Fai Cheng reserved all the copyrights of the songs and music videos he composed and produced. They are all declared as Creative Commons One (CC1). In other words, they can be used for non-commercial purposes without written consents from Dr. Cheng. It must not be mass produced and distributed. Moreover, the first 10 second of the credits acknowledgements in the beginning of the music videos must be played and cannot be altered. Fai composed, modified and arranged most of the music videos, and shot most of the photos and videos. The music videos which contain copyrighted contents (e.g. original melody compositions and videos) abide the standard YouTube licensing which means that the monetary benefits of all ads go to the claimants, otherwise the music videos are ads free.
In Christ, Fai Cheng Ph.D. 主內 鄭澤輝博士