水草情迷

Jf,
At last, bought your recommended electronic ballasts from Ap Liu Street today. But is yours still working? Just want to know if it is really that easy to be burnt before starting my DIY work.

Adrian: 我到依家都係用0左2兩日 , 一日開10個鐘 , 暫時就唔見有咩異樣, 希望你同我0個個都冇事啦!!!!

你27w管用38w牛大左d喎!小心!!

27w管用38w牛 有問題嗎 ?
如果38w管用27w牛 就有問題!

38w火牛 ---> 27w光管
1. 光管爆
2. 火牛過熱發生火警
3. 電線迥熱發生火警

27w火牛 ---> 38w光管
1. 光管只有27w的光度
2. 光管壽命縮短
3. 火牛壽命縮短

如無電氣常識, 唔好胡亂改燈
唉! 講過咁多次, 都係要咁做

After a half day big "surgery", I successfully modify my PML 2x9W PL to 1 x 27W PL (National) with the mentioned 38W transformer. It works well! The cover is even not as hot as before. :)) Seems my plants are happy with that. Hopefully, I can share some photos later.

However pls notice that people who don't have electrical work experience are not suggested to do this modification.

Anyway, Jf, thanks for your information.

無辦法啦！魚街賣的PL燈座又貴﹑火數及尺寸未必合適﹐為有DIY。
再者坊間未必能找到27W電子火牛﹐而部份魚友又鐘情於27W的三波長PL管。
最繄要係大家以安全為先決條件。
另外各位有電學知識的魚友可否多多指教哦？

38W牛用係 27W, 又好似大了點.
我用的是30W牛, 因為27W的, 只在台灣的網頁見過, 而且是110v的, 而原本燈座的牛, 又只得一塊電路板.

http://www2.aqugrass.com/phpBB2/viewtopic.php?t=316

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38w牛唔係最高可以用到38w 既燈咩 ?
一般火牛w數都係指最高負載 ...
除非 pl 牛特別d 啦...

"38w火牛 ---> 27w光管
1. 光管爆
2. 火牛過熱發生火警
3. 電線迥熱發生火警 "

But why I don't have any problem so far?
To my understanding, the "38W" labelled in the coverage of the transformer should be the max output power. Whether it can be drawn to 38W depends on the load (in this case, the PL tube). What do you think?

同埋我認為 27w火牛 ---> 38w光管 會使火牛 over load 而令火牛過熱發生火警 !!

唔聽便算吧...
仲有1樣0野
27w火牛只會輸出27w的電力
就算你插支38w光管入去佢都只會俾27w
供電係火牛
光管只會因輸入火數而令光管發亮
而唔係因輸出光度而去叫火牛俾大些火數

我建議你盡快換掉你的38w火牛,轉為27w 正負10%
又或者換掉你的27w光管,轉為38w正負10%

唔係唔聽 , 都唔係針對 . 只不過討論下咁
呢個網頁都參考下
http://www.omnitronix.com.tw/chinese-t/c-trans-1.htm

3k, I agree with your theory!

But CyberCatt is also right we don't shouldn't modify any electrical applicance IF you don't have any knowledge of it.

Hi JF,
本人是新手,
想買底沙,但又不知什麼底沙好
想請問你是用什麼底沙的,若有
牌子,價錢&購買地方更好

Thx~~ :-n05