LENSDual-Reflector vs Direct-Beam Projector Lenses
What single-reflector, dual-reflector and 6+1 to 6+4 direct-beam high beams mean, with real power figures from ShinVea lenses.
Every Bi-LED projector lens has a low beam made by LED chips firing into a reflector, plus a shutter that moves to open the high beam. The high beam can be boosted in two ways.
Reflector high beam
Single-reflector lenses use one reflector cup for both beams. Dual-reflector lenses add a second reflector and LED for the high beam: for example the 3.0-inch dual-reflector lens is 53 W low / 62 W high per lamp with 6 + 3 chips, and the 2.5-inch dual-reflector is 45 W / 53 W.
Direct-beam high beam
Direct-beam lenses add one to four extra chips that shine straight through the lens when the high beam is on. ShinVea writes this as low-beam chips + direct chips:
| Layout | Name | Example |
|---|---|---|
| 6 + 1 | Single direct-beam | 3.0-inch single direct-beam: 45 W low / 72 W high per lamp |
| 6 + 2 | Dual direct-beam | 2.5-inch dual direct-beam: 33 W low / 50 W high per lamp |
| 6 + 3 | Triple direct-beam | 2.5-inch triple direct-beam: 33 W low / 52 W high per lamp |
| 6 + 4 | Quad direct-beam | Ultra-short 3.0-inch cut-in quad direct-beam |
Which to choose?
- Long, dark roads and off-road use: a direct-beam lens gives a stronger high beam.
- City driving and a clean look: a single or dual-reflector lens is simpler.
- Hot climates: ask for a model with good heat dissipation and check the sealing of the headlamp.
Compare all builds on the 3.0-inch, 2.5-inch and ultra-short pages.
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