Bulb upgrades?

Is there a way to identify if I have H4 or H7 bulbs without taking them out to check?
 
Heres a pic showing the difference, you can tell by where your DRLs are when you turn the ignition on but generally if its a van or kombi unless specced otherwise when ordering it will be the H4 units

bade.PNG
 
Hi
Recommendations for a white LED 5w sidelight bulb for H4 units
Links to error free bulbs ?
Thanks
Dave
Do you actually use the sidelights? I don't really see the point in them any more now there are separate DRLs, unless you leave it parked with them on. I'm always either on DRLs or headlights
 
Do you actually use the sidelights? I don't really see the point in them any more now there are separate DRLs, unless you leave it parked with them on. I'm always either on DRLs or headlights
I thought they were on at the same time as the headlights you would have the white of the headlight bulb with a yellow sidelight bulb on in the same unit
 
Hi all, new to the forum.
I upgrade my dip headlights to led due to needing a replacement right light build. Working grade but the light on the dash is still on. Anyone know how to turn it off o reset?
Thanks
 
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