Larson 9 W Germicidal Lamp (G23, 254 nm)
Twin-tube G23 germicidal lamp
Data transparency
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Implied UV efficiency 26.7% (UV output ÷ nominal power) — within the physical range for this lamp type.
- measurement distance/sensor not stated
Plan with Simulex
Not sure how many lamps you need?
Model your UV-C disinfection setup first — required dose (D₉₀), lamp count, irradiance and coverage for your air, water or surface application. Free and vendor-neutral.
About this product
Compatible ballasts & cables
This is a bare replacement lamp — it needs external control gear. Matched by G23 socket and wattage.
Compare with similar items
Same technology world and application — the specs that actually drive the buying decision, side by side.
| Spec | This item  Larson 9 W Germicidal Lamp (G23, 254 nm) Larson Electronics $141 40% specced You are here |  VIQUA VH150 Under-Sink UV Water Treatment System VIQUA (Trojan Technologies Group ULC) $602 17% specced View → |  VIQUA VH200 Whole-Home UV Water Treatment System VIQUA (Trojan Technologies Group ULC) $707 17% specced View → |  American UV Air-Duct Residential Unit (1 Lamp) American Ultraviolet Co. $376 20% specced View → |
|---|---|---|---|---|
| Peak wavelength | 254 nm | 254 nm | 254 nm | 254 nm |
| Technology | Conventional (discharge) | Conventional (discharge) | Conventional (discharge) | Conventional (discharge) |
| Product form | Replacement lamp (external ballast) | Complete system | Complete system | Complete fixture |
| Treatment media | Air, Water, Surface | — | — | Air |
| UV-C output (254 nm) | 2.4 W | — | — | — |
| Lamp wattage (nominal) | 9 W | — | — | — |
| Lifetime | 8,000 h | — | — | — |
| Socket / base | G23 | — | — | — |
| Dimensions (L × W × H) | 14.5 × 2.79 × 2.79 cm | — | — | — |
| Ballast required | Yes | No | No | No |
Specifications as listed by each manufacturer or public source — LUVEX does not rank products. A blank cell means that figure has not been provided yet. Verified listings and active partners are shown first; the table itself stays neutral.
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