LENSHow to Choose a 1.5, 2.0, 2.5 or 3.0-inch Projector Lens
Lens size decides fitment, brightness and bracket choice. Compare 1.5, 2.0, 2.5 and 3.0-inch Bi-LED and fog lenses with real dimensions.
Projector lens size is the diameter of the front lens. It decides which headlamps the lens fits, how much light the optic can collect and whether you need a bracket or shroud. ShinVea makes four sizes.
| Size | Typical use | ShinVea range |
|---|---|---|
| 3.0-inch | Main headlight retrofits in full-size reflector or projector headlamps; most bracket kits are made for 3.0-inch | L and E series; round and square catalog builds; ultra-short versions |
| 2.5-inch | Compact headlamp housings with less space for a 3.0-inch lens | N series; single, dual-reflector and direct-beam builds |
| 2.0-inch | Small fog-lamp openings; motorcycle and auxiliary lights | G series; white, yellow, dual- and tri-colour fog lenses |
| 1.5-inch | Slim modern headlamps, motorcycles, auxiliary and matrix-style builds | S series (S0, S1, S2, S0 PRO) and square mini modules, including 18 W high-beam modules |
Step 1: measure the space
Check the depth behind the headlamp lens and the opening of the original reflector. A standard 3.0-inch plug-and-play lens is 105 × 79 × 156 mm, a cut-in 3.0-inch lens is 105 × 71 × 140 mm, a 2.5-inch lens is about 140 × 86 × 70 mm, and a 1.5-inch module is only 54 × 45 × 94 mm. If the housing is shallow, look at the ultra-short 3.0-inch or a smaller size.
Step 2: pick the beam layout
For a headlight, choose a Bi-LED lens (low and high beam in one unit). Decide between a dual-reflector high beam and a direct-beam high beam (extra LED chips): see reflector vs direct-beam. For fog lamps, pick a fog lens and a colour: see the fog lens guide.
Step 3: choose the installation type
Plug-and-play lenses with an H7, H4 or 9006 interface install without cutting the reflector; cut-in lenses are smaller but need a modification. See plug-and-play vs cut-in.
Step 4: match the market
Order the correct cut-off side (LHD, RHD or flat), colour temperature and voltage (12 V standard, 24 V on request) for your market. Our market guide summarises what sells in several regions.
Power, per lamp
All power figures on this site are per lamp. A 3.0-inch E2, for example, is 75 W high beam and 45 W low beam per lamp, which is 150 W / 90 W for a pair.
FAQ
Is a bigger projector lens always brighter?
A larger lens collects more light, but the LED chips, reflector design and power matter as much. Choose the size that fits the headlamp first, then compare power and beam layout.
Which size is most common for headlight retrofits?
3.0-inch, because most brackets, shrouds and kits are made for it. Use 2.5-inch or 1.5-inch where space is limited.
Request specs and a quotation
Tell us the lens size, model, quantity and target market. Quotations are sent after your inquiry.