Cracked H4 Bulbs

[suysuy]

Guys, tanong ko lang, ano ba ang cause nitong pag crack ng mga bulbs ko? Im using Narva 100w/90w Rangepower White.

Nung una, after 6 months, 1 bulb cracked. Kaya bumili ako ng bago same bulb. Then kagabi lang, napansin ko biglang nag yellow ang ilaw ng isang bulb. eh yun pag tingin ko cracked nanaman. Pero umiilaw pa. Yun nga lang dilaw na ang ilaw hanggat sa wala na.

Nung una right side ngayon left side nanaman. Ano ba cause nito? 700 pesos a pair pa naman itong binili kong bulb

[suysuy]

[suysuy]

up up ang away

[ghosthunter]

Maybe someone touched the glass part of the bulb with bare hands.

[mbeige]

Or worse, greasy bare hands.

[washburn]

+1
sensitive pa naman yan

[glntVR]

Baka nga may nakahawak sa glass part. We have a thread here before about touching the glass part of bulbs before and how to clean it if you accidentally touch the glass part.

[XTO]

Next time pag nagpalit ka, iwasan mo hawakan ang glass. High wattage pa naman yan…. Tsaka I suggest wag na superwhite kunin mo yang 100/90W sa stock ang lakas na nyan.

[mbeige]

Yes, use a clean towel soaked with acetone or alcohol. Acetone evaporates quickly so whatever it wipes off also goes off, oils included. Before you use acetone, dilute it first, since it will also eat paint perhaps the covered tip of the bulb might get eaten away. I would say 50% would be a safe concentration.

Acetone is also used to clean glasswares used in laboratories.

[suysuy]

hindi ko naman hinawakan eh. never. eh baka yung nag tetest doon sa shop ang naka hawak. minsan binabalik balik lang sa case yan if ayaw ng buyer so maybe yun nga. so dapat pala linisan nalang talaga ito before mo gagamitin?