HO High-Output UVC Germicidal Lamp | 800mA Drive, 38–180W, T5 Quartz

Product Overview

High-output (HO) UVC lamps exist to solve a space problem. When a disinfection reactor, an air-handling unit, or a water purifier cannot physically fit enough standard-output lamps to reach the target dose, the answer is not a bigger vessel — it is more UV from the same linear inches. The Legia Smart HO UVC lamp series drives its T5 quartz arc tubes at 800mA (versus the 425mA of standard-output lamps), roughly doubling the 254nm output per unit length while keeping the same single-ended 4-pin form factor that equipment designers already build around.

Across the GHO range — seven lengths from 357mm to 1554mm — lamp power runs from 38W to 150W with UVC intensity up to 395 μW/cm² at one meter and UVC output up to 44W per lamp. That output density lets an OEM shrink a water-treatment reactor by 30-40% versus a standard-output design at equal validated dose, or retrofit more disinfection capacity into an existing vessel simply by changing lamps and ballasts.

The companion GU series extends the platform into high-power, air-moving applications: seven models from 80W to 180W in a 37mm-wide format, available in 185nm ozone-generating quartz for combined UV + ozone treatment of exhaust air, odor control, and kitchen or industrial off-gas streams. Both sub-families share the same high-purity quartz, anti-solarization coating, and 9,000-hour rated life that define the Legia Smart HO platform.

High-Output Drive Technology

An HO lamp is not simply a standard lamp overdriven. Operating at 800-950mA demands a cathode engineered for the higher discharge current — Legia Smart HO lamps use a reinforced triple-coil filament with an emitter mix formulated to resist sputtering at high current density, which is what preserves lamp life at 9,000 hours despite the harsher electrical duty. The mercury dose and buffer-gas fill are recalibrated for the higher wall loading, so the 254nm resonance line stays efficiently excited instead of self-absorbing as tube temperature rises.

Every HO lamp is built from high-purity fused quartz with impurity content reduced by a proprietary refining process, then coated internally to suppress solarization. High initial UVC radiation with low decay over life is the measurable result: systems validated on Legia Smart HO lamps hold their dose through the full service interval instead of drifting below setpoint at mid-life.

Core Advantages

• 800mA High-Output Drive — Why It Matters: Roughly twice the UVC watts per meter of arc length versus standard-output T5 lamps. For OEMs, that means a smaller reactor, a smaller pressure drop, and a lower system cost at equal disinfection performance — or a meaningful dose upgrade in an existing footprint.
• Up to 395 μW/cm² at 1m — Why It Matters: In-duct air disinfection and high-flow water systems are intensity-limited, not exposure-time-limited. Higher lamp intensity directly raises the single-pass log reduction the reactor can deliver.
• Single-Ended 4-Pin Format — Why It Matters: One end of the lamp carries both electrical connections, so the reactor needs penetrations and seals on one side only. Lamp replacement becomes a one-ended, tool-free operation — a real maintenance cost advantage in multi-lamp racks.
• GU Series with 185nm Ozone Generation — Why It Matters: Odor control, grease-laden kitchen exhaust, and VOC-laden industrial off-gas respond to the combined attack of 254nm photolysis plus ozone oxidation. The GU platform delivers both from one lamp, rated for continuous duty in moving airstreams.
• High-Purity Coated Quartz — Why It Matters: Solarization is the silent killer of high-output lamps: the higher the wall loading, the faster unprotected quartz darkens. The Legia Smart coating process keeps end-of-life output high enough to validate the full 9,000-hour interval.
• Custom Bases, Ozone or Ozone-Free — Why It Matters: Matching quartz sleeves and electronic ballasts are available from the same source, and every model can be built in ozone-free or ozone-generating quartz to match the process requirement.

Typical Applications

Compact Water Disinfection Reactors: Commercial and light-industrial water purifiers, beverage process water loops, and point-of-entry systems where reactor length is constrained but validated dose is non-negotiable.

HVAC & In-Duct Air Disinfection: GHO lamps mounted across cooling coils and supply ducts keep coil biofilm off heat-exchange surfaces and reduce airborne microbial load in hospitals, schools, and commercial buildings.

Wastewater & Process Water: High-flow tertiary disinfection and water-reuse skids use HO lamps to minimize the number of lamps, seals, and ballasts per MGD treated.

Odor & Off-Gas Treatment (GU Series): Kitchen exhaust, sewage-plant vent air, and industrial process off-gas streams use ozone-generating GU lamps for combined UV photolysis and oxidation.

Technical Specifications

GHO Series — High-Output Single-Ended Lamps

Model	Tube Dia (mm)	Length (mm)	Arc Length (mm)	Power (W)	Current (mA)	Voltage 50/60Hz (V)	UV Intensity @1m (μW/cm²)	UVC Output (W)	Rated Life (h)
GHO357T5L(VH)	15	357	289	38	800	48	95	9.0	9,000
GHO436T5L(VH)	15	436	368	48	800	60	120	13.0	9,000
GHO610T5L(VH)	15	610	530	58	800	73	170	18.0	9,000
GHO846T5L(VH)	15	846	766	90	800	113	265	28.0	9,000
GHO894T5L(VH)	15	894	814	95	800	120	270	29.0	9,000
GHO1149T5L(VH)	15	1149	985	120	800	135	325	34.0	9,000
GHO1554T5L(VH)	15	1554	1475	150	800	170	395	44.0	9,000

GU Series — High-Power Lamps for Air Treatment

Model	Width (mm)	Tube Dia (mm)	Length (mm)	Power (W)	Current (mA)	Voltage 50/60Hz (V)	Ozone Concentration	Rated Life (h)
GU80W	37	15	450	80	800	80	19	9,000
GU100W	37	15	550	100	800	95	21	9,000
GU120W	37	15	600	120	800	100	25	9,000
GU140W	37	15	700	140	800	120	30	9,000
GU150W	37	15	810	150	850	145	36	9,000
GU160W	37	15	900	160	950	155	40	9,000
GU180W	37	15	1000	180	950	160	45	9,000

UV intensity measured at 1 meter distance. GU series ozone concentration is airflow-dependent; values shown at reference wind speed. Custom lamp bases, and ozone-free or ozone-generating (185nm) quartz, are available to order.