Boslla · Updated August 2026

Boslla Bullet B4 4-Mode LED Headlight Bulbs: full specs

Boslla Bullet B4 4-Mode LED Headlight Bulbs. Every price and spec below is linked to its source and dated — no guesses.

Source: bulbfacts.com verified 2026-08-12 STALE · 2026-08-12 verify in ledger

The Boslla Bullet B4 4-Mode LED Headlight Bulbs has no US price of record yet. It earns a Bronze Deskmark — 10/100 pay-blind standing, #8 of 13 in class.

Verified Aug 12, 2026 · figures linked to their source in the table below

Cheapest LED headlight bulbs: BEAMTECH H11 LED Headlight Bulb, Fanless CSP Y19 Chips, 8000 Lumens 6500K (Pair) — $35.99

The Front Desk Price of Record

No listed price at source

checked 2026-08-12 STALE · 2026-08-12 · at bulbfacts.com · BulbFacts cites an estimated street-price range of $110-120 depending on bulb size/seller; no single manufacturer-listed MSRP was found during this research session

bulbfacts.com publishes no self-serve price for the Boslla Bullet B4 4-Mode LED Headlight Bulbs as of this date — it is quote-only or unlisted. We record no price of record rather than invent one, and track it: the moment a price is listed, it lands here dated and sourced.

Cite this record

Per The Front Desk Review, the Boslla Bullet B4 4-Mode LED Headlight Bulbs had no listed price of record at bulbfacts.com as of 2026-08-12 (source last checked 2026-08-12; not re-verified in over 30 days at the time of citation) — https://frontdeskreview.com/product/led-headlight-bulbs/boslla-bullet-b4/

See Boslla Bullet B4 4-Mode LED Headlight Bulbs on Amazon We don’t list a US price for this one — check current pricing. As an Amazon Associate we earn from qualifying purchases.

Is the Boslla Bullet B4 4-Mode LED Headlight Bulbs a good buy?

On the spec sheet, its color temp of 5750 K is below the median of the 14, and its lumens per set of 8420 is at the median of the 13.

Specifications

Price (US)	Not published BulbFacts cites an estimated street-price range of $110-120 depending on bulb size/seller; no single manufacturer-listed MSRP was found during this research session
Brand	Boslla
Released	—
Lumens per set	8420
Color temp (K)	5750
Bulb fitment	Sold across common sizes (bench-tested size not specified); 4 selectable color modes incl. 2950K yellow
Wattage (W)	26.6-28.1 (per bulb, mode-dependent)
LED chip type	Philips LED chips
Beam pattern	1-degree rotatable clocking; 4 selectable modes (white / white-yellow blend / yellow / warning-flash)
Cooling	Fan-cooled, removable external driver
Rated lifespan (hr)	—

Source: bulbfacts.com (read 2026-08-12) STALE · 2026-08-12 .

How we checked

Included as a verified real-product substitute for a seed-list brand whose own site was unreachable during this research session. BulbFacts independently bench-tested: 8,420LM/kit in white mode (4,210LM/bulb), 26.6-28.1W/bulb depending on mode, 5750K white / ~5500K white-yellow blend / 2950K yellow modes, Philips LED chips, fan-cooled (43C/109F, 63dB), 1-degree rotatable across 4 selectable modes, removable external driver (55x30x13mm), ~$110-120 street price. Rated lifespan hours are not provided in the review.

Frequently asked questions

How much does the Boslla Bullet B4 4-Mode LED Headlight Bulbs cost?

The Boslla Bullet B4 4-Mode LED Headlight Bulbs has no US price of record as of 2026-08-12.

What are the Boslla Bullet B4 4-Mode LED Headlight Bulbs's key specs?

Boslla Bullet B4 4-Mode LED Headlight Bulbs (Boslla): Lumens per set 8420, Color temp (K) 5750, Bulb fitment Sold across common sizes (bench-tested size not specified); 4 selectable color modes incl. 2950K yellow, Wattage (W) 26.6-28.1 (per bulb, mode-dependent), LED chip type Philips LED chips. Full sourced spec sheet verified 2026-08-12.

See Boslla Bullet B4 4-Mode LED Headlight Bulbs on Amazon As an Amazon Associate we earn from qualifying purchases.