H4 Bulb both low/high are on, is it safe?

[rion]

in relation with this thread: http://tsikot.yehey.com/forums/showt...834#post937834

as I was upgrading my headlight with a relay. I realized my connection will make my H4 bulb on high beam running with low beam. though low beam is as-is low beam only.

so my question is: is it still safe? I'm concern the gas inside the bulb cannot take two beams running at the same time. it is a stock wattage 55w/60w with heavy duty wire and a ceramic socket though...

I'm not much concern about the bulb life span. I'm concern it might blow or melt my plastic headlight casing...

[ghosthunter]

in relation with this thread: http://tsikot.yehey.com/forums/showt...834#post937834

as I was upgrading my headlight with a relay. I realized my connection will make my H4 bulb on high beam running with low beam. though low beam is as-is low beam only.

so my question is: is it still safe? I'm concern the gas inside the bulb cannot take two beams running at the same time. it is a stock wattage 55w/60w with heavy duty wire and a ceramic socket though...

I'm not much concern about the bulb life span. I'm concern it might blow or melt my plastic headlight casing...

not safe... generally if the high beam is on, the low beam filament is off. If they are both on, it could melt the housing, socket or even start a fire.

[Jedi730]

in relation with this thread: http://tsikot.yehey.com/forums/showt...834#post937834

as I was upgrading my headlight with a relay. I realized my connection will make my H4 bulb on high beam running with low beam. though low beam is as-is low beam only.

so my question is: is it still safe? I'm concern the gas inside the bulb cannot take two beams running at the same time. it is a stock wattage 55w/60w with heavy duty wire and a ceramic socket though...

I'm not much concern about the bulb life span. I'm concern it might blow or melt my plastic headlight casing...

hey bro. i also installed the wiring harness kit for h4 90/100 bulbs. how can you tell it both high and low beam are on? i noticed that its a ot brighter than before. also scared of melting. when i hit the high beam it changes higher. is this also the same with you? thanks.

[rion]

salamat po ghosthunter. I'm just glad I am now able to make each beams on solo now.

*Jedi730: by watching the lights mismo. it was painful in the eyes but atleast it was daylight.

when you hit the high beam and it changes higher, then your connection is fine.

running both low and high is very noticable. since the aim doesn't change, but the aim expands.

I have no personal experience with high wattage bulbs. if your casing is all made of glass then you should be fine though.

[Jedi730]

thanks rion.

[Yoda]

*Jedi730: by watching the lights mismo. it was painful in the eyes but atleast it was daylight.

A voltmeter would've been safer. Dapat nag-shades ka.

[mbeige]

Low beam (55W) + high beam (65W) is equal to around 120W of light! That's more than the overwattage bulbs usually offered, hence really dangerous and might melt both the headlamp housing, sockets, and put a good strain on the wiring.

[JagXtrm]

na-experience ko rin yan dati sa hilander ko...

nag-install ako ng relay (yung kit with the yellow-colored cover sa wires) tapos naglagay ako ng Narva 90/100w all-weather bulbs.

Sarap ng biyahe ko papuntang Ilocos to Pagudpud (daytime). Inabot ako ng gabi sa Pagudpud at pabalik na ako sa Vigan (doon kasi ako nagpa-book para mag overnight stay).

Nung nasa highway na ako, sobra dilim at wala gaanong kasalubong. oks lang naka low-beam pero sa bilis ng takbo ko (80-100kph) mas maganda naka hi-beam para makita ko pa ang daan. Nung nag high-beam na ako, after 1 minute or 2 pumutok ang 2 headlight bulbs ko! nag switch ako sa low-beam at yung right side na lang ang umiilaw!

Minalas pa ako kasi di ko nakita yung lubak sa right side, kaya nung napadaan ako sa lubak, tuluyan na napundi yung headlight bulbs!

Nakarating ako sa Vigan after 2 hours, gamit lang ang fog lights * 40 kph max. Nagsisi ako kung bakit naglagay pa ako ng relay kit na yun!

pagdating ko sa Vigan basag yung dalawang H4 bulbs at nagkalat sa loob ng headlight housing yung bubog. Buti na lang yung schedule ko ng pauwi ng Manila eh naka-set ng umaga.