H4 is a dual-filament bulb (P43t, 60/55 W): one filament for low beam, one for high beam, in the same headlight. Typical for older and smaller cars, vans and motorcycles.
Does an H4 LED give both low and high beam?
Yes — an H4 LED has two LED arrays that mimic the two filaments, and switching works through the original connector. The chips must sit exactly where the filaments were, otherwise the beam scatters — that is why we only sell bulbs with controlled geometry.
Why does the car report a "bulb out" error after fitting LED?
LED draws a fraction of the current of a halogen bulb, so the CANBUS system assumes the bulb is missing. The fix is an error canceller (resistor/decoder) wired inline with the bulb — the warning disappears. For T10 and festoon a CANBUS version of the bulb is usually enough.
What warranty do the bulbs carry?
All LED and xenon bulbs come with a 12-month warranty. If a bulb fails within that time we replace it, no fuss. Halogen bulbs are consumables — the warranty covers manufacturing defects only.
How do I pay and how long does delivery take?
Payment is cash on delivery and courier delivery across Montenegro takes 24–48 h from order confirmation. MobileLand imports directly and keeps stock on hand — no waiting for a supplier.