SageSunny Exclusive H4 (P43T) LED 24V truck headlight bulbs – 70W, 14000lm, 6500K pure white, set of 2

What these are for

If you drive a 24V truck and you’re fed up with weak, aging halogen bulbs, these SageSunny Exclusive H4 (P43T) LED headlight bulbs are aimed at an easy upgrade. They’re designed as a plug-and-play replacement for H4 halogen-style units, covering both dipped beam and high beam in one bulb.

On paper, the pitch is clear: more usable light output, a cool white 6500K colour, and a design that’s meant to fit your existing headlight housing. That matters because with some aftermarket LEDs, the “it might fit” situation can turn into faff. Here, the claim is 1:1 size so you can close the original headlight cover.

That said, it’s worth being honest: brightness claims are always something to treat with a pinch of caution until you’ve checked reviews and real-world beam patterns for your specific truck setup.

The essentials (and what you’ll notice day to day)

The bulbs are described as 70W with a total stated output of 14000lm (with a breakdown given as 35W 7000lm per bulb). They also use CSP LED flip-chip technology, and the brand states a big jump in illumination compared with original bulbs.

If you’re using the truck for everyday commuting, local deliveries, or night work, the practical “feel” you’ll be looking for is simpler than the spec sheet: better visibility on the road, and being more noticeable to other drivers. A cool white 6500K finish is also there to reduce eye fatigue, at least as the manufacturer suggests.

Micro-scenario: imagine you’re doing an evening run on a route with darker stretches. The dipped beam should help you see further ahead, while high beam gives you that extra reach when the road opens up. The goal is fewer moments where you rely purely on your headlights “getting you by”.

Cooling and packaging inside the headlight

LED retrofits can run into heat issues, and this is where these bulbs try to address things. They’re described as the shortest available on the market, with circular cooling using a fan.

The practical takeaway is that headlight clearance can be the make-or-break point for LED swaps. If your housing space is tight, a shorter design and a focus on effective cooling can make the difference between a clean install and a frustrating one. Still, “shortest” doesn’t automatically guarantee universal clearance—always compare the bulb’s physical fit against your specific lamp unit.

24V truck wiring and CANBUS

For UK truck owners, electrical compatibility is often the bigger worry than the light output. These are described as designed to adapt to 24V truck wiring, with 6–36V DC support and a CANBUS system aimed at preventing interference or ignition disruption.

This is one of the stronger reasons to consider them if you’ve had experience with LED bulbs causing flicker, error warnings, or dimming on the dashboard. The claim here is that they “seamlessly adapt” without messing with the truck electronics.

Where they make sense, and where they might not

It’s a good fit if you want a straightforward H4 (P43T) LED upgrade for a 24V truck and you care about a plug & play approach, with the ability to close the original headlight cover. It also makes sense if you do a lot of night driving and you’re targeting improved visibility and a cooler, clearer beam colour.

It may not be a great match if your priority is beam pattern accuracy (cut-off sharpness) above raw brightness, because that depends heavily on the reflector/lens design and how the LED’s light source sits within the housing. It also might not suit you if your headlight enclosure doesn’t have the clearance needed for the fan/cooling setup, even if the bulb is described as short.

The essentials to double-check before buying

Before you commit, check the bulb fitment for your truck: these are H4 (P43T) style, meant as a direct replacement for halogen units. You should also confirm you’re working with 24V wiring, since that’s the stated application.

It’s also worth reviewing whether your current headlight cover can close once the LED bulb is installed. The product description leans on a 1:1 size idea, but real-world installations vary.

Finally, keep an eye on the warranty terms mentioned (a 2-year warranty is stated). Even with LED bulbs, that kind of coverage can matter if you get any early faults.

Is it worth it?

For many people with 24V trucks who want a practical LED replacement in H4 (P43T) form, this set looks like it’s designed to remove the usual hurdles: it’s presented as 1:1 for easier installation, and it focuses on CANBUS compatibility to reduce wiring/electronics issues.

You should consider buying if your main goal is an everyday visibility upgrade—dipped and high beam—with a cool white finish and a long-life LED approach (30,000 hours is stated). You should probably skip it if you can’t verify the physical clearance in your headlight unit or if you’re very sensitive to beam pattern and cut-off behaviour, which can’t be guaranteed from specs alone.

If you’re shopping around, think of these as a plug-in upgrade route rather than a “tune every optical detail” project.

Quick FAQ

Quick FAQ

Are these bulbs plug & play?

They’re described as plug & play and intended to work in the same way as original H4 halogen bulbs.

Do they support both dipped beam and high beam?

Yes—this is presented as an H4 bi-led replacement for both dipped and high beam.

Are they compatible with 24V truck electrics?

They’re described as adapting to 24V truck wiring, and they include a CANBUS system to avoid interference or ignition disruption.

What colour temperature do they use?

The stated colour temperature is 6500K pure white.

What’s the warranty?

A 2-year warranty is stated.