Shanghai Jastar Industrial Co., Ltd.
Instant · Round dial 3,500 / 5,500 W 110 / 220 V 30 – 55 °C OEM / ODM

5.5 kW Instant Electric Water Heater — Round Dial Control, 140 mm Wide

A 140 × 60 × 180 mm heater with a round dial and touch keys around a circular LED readout. 3,500–5,500 W across 110 V and 220 V, outlet held between 30–55 °C, water in about two seconds. White, black and grey panels in stock.

Model
GB-20
Rated power
3,500 / 5,500 W
Voltage / Frequency
110 / 220 V ~ · 50 / 60 Hz
Heating element
Stainless steel cup, 5.5 kW
Hot water in
≈ 2 seconds
Temperature range
30 – 55 °C
Control
Round dial with touch keys and LED display
Panel
Tempered glass · white / black / grey
Power cable
≥ 2.5 mm² copper core
Unit size
140 × 60 × 180 mm
Carton
16 pcs · 460 × 350 × 510 mm · 29 kg

MOQ 100 pcs for custom panel colour, pattern and logo · 1,000 pcs for custom packaging. Samples from 1 pc — the sample price is higher than the bulk price, and we refund the difference once you place a bulk order within 30 days of receiving the sample. Prices are quoted per order, EXW Shanghai — tell us your quantity and destination port and we will reply within one working day.

CE RoHS 100% tested before shipment

Why this model

The smallest body with a full control set

140 mm wide, round dial, three panel colours.

140 mm wide, round dial

140 mm wide, round dial

The smallest footprint in the range with a full control set — dial for temperature, touch keys for power and mode.

White, black or grey panel

White, black or grey panel

Three panel colours held in stock, so a buyer can mix finishes across a project without a custom run.

Kitchen, basin, bathroom, laundry

Kitchen, basin, bathroom, laundry

One unit covers a kitchen sink, a basin, a shower or a laundry point — wherever hot water is drawn in short bursts.

LED readout, touch keys

LED readout, touch keys

The circular display shows the live outlet temperature and the keys work with wet hands; the body itself is splash-rated.

Specifications

Technical data — GB-20

Every unit is pressure-tested and function-tested before packing. Custom panel finish and power connection available for OEM orders.

Electrical & performance
Rated power3,500 / 5,500 W
Rated voltage110 / 220 V ~ · 50 / 60 Hz
Heating elementStainless steel cup, 5.5 kW
Heating time≈ 2 seconds
Temperature range30 – 55 °C
ControlRound dial with touch keys and LED display
Front panelTempered glass · white, black and grey in stock
Power cable≥ 2.5 mm² copper core
Power connectionPlug standard to order (EU / US / UK / AU / Africa)
ProtectionWater–electricity separation · Over-temperature protection · Dry-heat protection · Leakage protection
Waterproof ratingIPX4
CertificationCE · RoHS
Water, dimensions & packing
Unit size140 × 60 × 180 mm
Inner box225 × 85 × 250 mm
Pcs per carton16 pcs
Carton size460 × 350 × 510 mm
Gross weight29 kg
LoadingLCL and FCL both available

OEM & ODM

Make it your own brand

We build for importers, wholesalers and own-brand retailers — from a panel colour change to a fully customised product and gift box.

Panel colour, pattern & logo

Body colour and front panel in your colour and pattern, with your logo printed or laser-etched. Artwork proof before mass production.

MOQ 100 pcs

Packaging

Custom printed inner box and master carton, colour or gift box, barcode and retail labelling. Export cartons are drop-tested.

MOQ 1,000 pcs

Power connection

Plug standard (EU / US / UK / AU / Africa) and cable length matched to your market. Shower set included or optional as listed above.

No extra MOQ

Documents & certification

CE and RoHS test reports, product photos, specification sheets and packing lists for your own listings and customs clearance.

Ready to share

Samples & price protection

Test one unit before you commit to a container

Every model is available as a sample, and every price step you reach is paid back to you — the sample itself included.

Samples from 1 pc

Order a single unit to test it, open it up and show your own customers. No minimum quantity, any model in the range, shipped with its CE and RoHS test reports.

MOQ 1 pc

The sample price difference comes back

A single unit is charged above the bulk price, because of one-off handling and air freight. Place a bulk order for the same model within 30 days of receiving the sample and we refund the difference.

30-day rebate

Earlier shipments are rebated too

Our four price tiers — 10–99 / 100–999 / 1,000–9,999 / 10,000+ pcs — are counted cumulatively over the 30 days after you receive the goods. Reach a higher tier and we refund the difference on the units you have already shipped.

Cumulative over 30 days

Tell us which model you want to test and we will send the sample invoice the same working day.

Request a quotation for GB-20

Send us your quantity, destination port and power connection requirements — we will come back with prices and lead time within one working day.

Product Catalog 2026

Browse the full range — instant water heaters, hot water taps and bathroom & desk heaters — in one PDF.