Best 3x Uvc Leuchte 7 2026

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Last Updated - 22.07.2026

Best Choice

01

AquaForte

Aquaforte T5 Replacement Bulb 40 W For e.g. Submersible UVC, Budget Tech/Flex, Clear

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9.7

Exceptional

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T5 lamp
Suitable for e.g. Tauch UV-C, Budget Tech/Flex, Pro 3L
Great value for money

30,48 €
Value for Money

02

Oase

OASE 57111 Replacement Lamp UVC 7W - UVC Lamp Fits BioSmart 5000, BioPress 4000, ClearTronic 7W, for Algae Control

11% Off

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9.6

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Since the UVC clarifier with a power consumption of 7 watts is usually permanently in use, the effect can be achieved after approx. 8000 hours. decrease.
Safe killing of floating algae and harmful bacteria: the replacement lamp UVC is characterised by a high quality
Reliable light output for BioSmart 5000, BioPress 4000, ClearTronic 7 W
In order to guarantee the full performance of the UVC light waves, the UVC lamps should be replaced at regular intervals, ideally before the start of the season in spring
Best possible UVC output power in combination with ballast and quartz glass

20,95 € 23,45 €(11% Off off)
03

Osaga

3x UVC Light 7 Watt PL G23 Replacement Fluorescent Tube Lamp UV-C Replacement Lamp

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9.5

Excellent

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THE LIGHT BULB
Osaga
3x UVC lamp 7 Watt PL G23 fluorescent tube lamp UV-C lamp

17,19 €
04

AffyBulb

AffyBulb 7W G23 PLS Replacement UV Bulb for Pond UVC Filter, Machine or Clarifier

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9.4

Excellent

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Practical tips: ①Due to the sensitivity of the UVC light source to DNA, it is forbidden to directly illuminate people and animals and plants when using the product, or looking directly at the light source; ② When using any questions, you can advise us to answer our professional customer service online for you at any time.
Lamp Length: 115mm; Total Length: 137mm; Diameter: 12mm; Lamp Holder: G23-2 Pins
AffyBulb UVC replacement bulb to achieve a better disinfection and sterilisation effect, we choose a high-purity quartz glass tube, so that the UV permeability from 253.7 nm up to 95%, and the amalgam can adapt to the ambient temperature of -10~80°C to ensure that it still has stable UV output under different temperature conditions.
AffyBulb 7W PLS replacement bulb, built-in 220~240V anti-interference capacity, more stable output power UVC. Widely used in family, hospital, swimming pool, aquarium and aquaculture and other places of disinfection disinfection sterilisation.
Adopt cold cathode technology, independent research and development of the durable wick, extend the service time. Our products have passed CE certification and meet RoHS standards. Please make sure your lamp specifications match ours before you buy.

9,78 €
05

UPPZLLXU

UPPZLLXU 7W G23 PLS UVC Replacement Bulb Inductive Ballast for Pond Clarifier UVC Filter Bacteria and Algae in Aquarium and Pond (Pack of 2)

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9.3

Excellent

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【Precise 253.7nm UVC Sterilization】This lamp with high quality quartz glass ensures 95% UVC transmittance at the precise 253.7nm wavelength. It effectively eliminates bacteria and controls algae in aquariums, ponds and water systems - ideal for pond filters and clarifiers.
Stable performance at any temperature: Advanced, temperature-adapting technology ensures consistent disinfection performance from -10°C to 80°C. Ideal for various water application areas.
Safety and compatibility: This UV lamp requires an inductive ballast and is not compatible with electronic ballasts. Avoid direct irradiation to eyes, skin and living beings.
Durable cold cathode technology: robust cold cathode technology ensures an extended service life with minimal maintenance.
Certified 7 W PLS replacement lamp: certified 7 W PLS replacement lamp (115 mm lamp length, 137 mm total length, 12 mm diameter, G23-2 pin). Meets CE and RoHS standards for safe use.

14,99 €
06

Osaga

Osaga - UV-C UV Light Lamp Tube 9 Watt UVC-9 PL G23 - Pack of 2 - Modern - Outdoor - 17 x 4 x 2 cm

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9.2

Excellent

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Socket: G 23
For UVC pond filters and UVC pond clarifiers
Compatible with all models on the market
2 x 9 Watt UVC bulbs

14,79 €
07

Pondlife

Pondlife 2 x UVC 7 Watt PL replacement lamp for UVC device light bulbs

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9.1

Excellent

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QUICK REPLACEMENT: Pull out the old lamp, insert new ones – no tools needed in just a few steps. The compact PL design makes it easy to handle in tight housings. Please only work tension-free and check quartz glass and seals to keep the efficiency constant.
Perfect fit compatibility: G23 base, 7 W and approx. 105mm Length - This PL replacement lamp fits standard UVC clarifiers and pond clarifiers with G23 intake. The precise plug-in base ensures a tight fit and secure connection so that your UVC device works reliably.
Less downtime: you have immediate replacement when the first lamp reaches its service life - for continuous operation of your pond UVC clarifier without long service life.
Important specifications: power 7 W, socket type G23 (2-pin), type PL, length approx. 105mm Materials: glass, plastic, metal. Colours: transparent/clear, white, metallic. Use: replacement bulb for UVC devices/pond clarifiers. Box contents: 2x UVC 7W PL replacement bulb.
Clear water: with 7 watts, the bulb provides the right UVC radiation for many pond UVC devices. As a replacement with decreasing performance, it restores the function of your UVC clarifier - for well-maintained water quality in pond operation.

13,39 €
08

Glostars

7 W UVC replacement lamp bulb, with G23 base, UV lamp replacement, for pond filter, aquarium and water clarifier

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9.0

Excellent

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Stable performance under extreme conditions: This lamp ensures constant UVC performance at ambient temperatures from -10°C to 80°C. CE certified and RoHS compliant for the highest quality and environmental sustainability.
Precise compatibility for easy replacement: this 7W PLS UVC lamp has a G23 (2-pin) socket. With a tube length of 115 mm and a pin spacing of 23 mm, it is the ideal replacement for original bulbs and compatible with most standard UVC filters.
Plug & Play & Stable Function The simple plug-in system allows for effortless installation. The integrated suppression capacitor and support for a wide input voltage of 220-240V ensure durable, stable operation and protection from electrical interference.
Important Safety Notes:① Before replacing: please check if power (watts), dimensions and socket type match your device.② During operation: Do not look directly into the luminous UV tube. Avoid direct irradiation to skin, eyes, people, animals and plants.③ Maintenance interval: For optimal disinfection effect, annual replacement of the lamp is recommended.
HIGH EFFICIENCY GERM KILLING & UV TRANSMISSION Made of high purity quartz glass, this UVC lamp achieves a transmission rate of up to 95% at 253.7nm. In combination with cold cathode technology, it ensures strong and stable UVC performance, which effectively kills bacteria and viruses in the water and inhibits algae growth.

8,99 €
09

OSRAM

Osram Puritec HNS S G23 UVC Lamp, 7 W, White, Pack of 1

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8.9

Very Good

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Product advantages: effective and environmentally friendly disinfection without chemicals. Low mercury content
Product advantages: effective and environmentally friendly disinfection without chemicals. Low mercury
Long service life due to special coating Ozone free Product features: Main line of the spectrum: 254 nm (OFR version) Areas of application: For efficient air, water and surface disinfection

9,92 €
10

PHILIPS

Philips TUV 7-Watt UV-C Germicidal Pond-Purifying Compact Lamp, PL-S

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8.7

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

The lamp's glass tube filters out the 185 nm ozone-forming radiation.
Protective inner coating reduces deterioration of the UVC output.
Emits short-wave UV radiation with a peak value of 253.7 nm (UV-C) for sterilisation.
Compact, single-ended, low-pressure, mercury vapour discharge lamp.
7 W - Philips UVC light - TUV PL-S - G23.

11,00 €