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Handheld H SeriesHF7Supercapacitor in a pen: 1060A peak, 1.5M cycles, 10-second recharge, welds 0.3mm nickel/copper — the most capable handheld in its class.H2-2026150g pen-style welder: 1060A dual-pulse, 60k-weld dedicated cell, 2000 welds per charge, 1.3" color screen with 90 levels, dual-tip needle, welds 0.35mm nickel-plated steel and copper.H1-2026125g entry model: 880A dual pulse, single A-grade cell, 1500 welds per charge, welds 0.25mm nickel-plated steel. Learn it in 3 seconds.Universal U SeriesUF20BU-series flagship: 10.5kW / 1750A, 2×1000F actively-balanced supercapacitors, 40-second recharge at 15A, three trigger modes, 99 levels, welds 0.4mm nickel-plated steel and copper. 2-year warranty.UK3Twin A-grade cells (10000mAh), 1650A / 9000W, ~4000 welds per charge; knob + TFT screen, 99 levels, auto/pen/foot-switch; welds 0.3mm pure nickel and butt-welds 0.7mm stainless. ~300g, 2-year warranty.UK1Twin A-grade cells (5000mAh), 1380A / 9000W, 1500 welds; knob + digital display, dual pulse; welds up to 0.5mm (butt), nickel/copper/steel. ~370g, 1-year warranty.Professional P SeriesP120DTop of the P series: 4×3000F supercapacitors, 69.2kW / 6590A, welds 2.0mm nickel-plated steel, 0.5mm copper, 0.6mm aluminium; butt-welds 6.0mm steel, prismatic Al-to-Ni/Cu; 2.4" screen with 999 levels, 15A fast charge, 4kg with hidden handle.P60F6×1000F 9V supercapacitors, 29.2kW / 3250A / 8687J, welds 1.0mm nickel-plated steel, 0.5mm pure nickel, 0.3mm copper; 2.4" screen with 999 levels, 15A fast charge (1 min), 1.5kg.Shop now ›Compare models ›
Energy-storage tech
Purpose-built lithium weldersUK3Twin A-grade cells (10000mAh), 1650A / 9000W, ~4000 welds per charge; knob + TFT screen, 99 levels, auto/pen/foot-switch; welds 0.3mm pure nickel and butt-welds 0.7mm stainless. ~300g, 2-year warranty.UK1Twin A-grade cells (5000mAh), 1380A / 9000W, 1500 welds; knob + digital display, dual pulse; welds up to 0.5mm (butt), nickel/copper/steel. ~370g, 1-year warranty.H2-2026150g pen-style welder: 1060A dual-pulse, 60k-weld dedicated cell, 2000 welds per charge, 1.3" color screen with 90 levels, dual-tip needle, welds 0.35mm nickel-plated steel and copper.All-new supercapacitor weldersP120DTop of the P series: 4×3000F supercapacitors, 69.2kW / 6590A, welds 2.0mm nickel-plated steel, 0.5mm copper, 0.6mm aluminium; butt-welds 6.0mm steel, prismatic Al-to-Ni/Cu; 2.4" screen with 999 levels, 15A fast charge, 4kg with hidden handle.P60F6×1000F 9V supercapacitors, 29.2kW / 3250A / 8687J, welds 1.0mm nickel-plated steel, 0.5mm pure nickel, 0.3mm copper; 2.4" screen with 999 levels, 15A fast charge (1 min), 1.5kg.UF20BU-series flagship: 10.5kW / 1750A, 2×1000F actively-balanced supercapacitors, 40-second recharge at 15A, three trigger modes, 99 levels, welds 0.4mm nickel-plated steel and copper. 2-year warranty.Shop now ›Parameter lookup ›
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welding pen
WP110 welding pen · 8 AWG · 1 pcA standard welding pen without a control button, with replaceable pins.WP120 welding pen · 8 AWG · 1 pcA manual button triggers at will; removable alumina-copper pins; thick copper lead; about 40cm long.WP110-6 welding pen · 6 AWG · 1 pcThick-lead version of the standard welding pen.WP120-6 welding pen · 6 AWG · 1 pcThicker copper lead for high-current models; UK3/UKF10 pages note the optional WP120-6 smart hand pen for triggered welding.WP240 multi-function integrated penAn all-in-one smart welding pen with hand-triggered control, fitting high-power hosts such as P90C/P120D (SKU photo shows "P90C-SKU-with-WP240-pen"); replaceable pins.WP158 welding pen · 1 pcShown in accessory photos; the catalog lists only its dedicated pins (¥19.9) — the pen's price and fit are to be confirmed.Buy now ›
welding pins
H series pins · 1 pairDouble-ended pins · premium alumina copper · wear-resistant · durableWP110/120 pins · 8 AWG · 1 pairPremium alumina copper · wear-resistant · durable · for 8 AWGWP110-6/120-6 pins · 6 AWG · 1 pairPremium alumina copper · wear-resistant · durable · for 6 AWGWP158 pins · 1 pairHigh conductivity · heat-resistant · premium alumina copper · wear-resistant · durableBuy now ›
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HD2

HD2 Support center

Previous generation of HD2-2026: 650A, digital display, 5V/1A.

Product manual

HD2 user manual (CN/EN) (2026-07-30)

Specifications

The nine spec groups are in the specifications on the product page.

Safety notes

Key safety points for lithium-battery work are in the Safety & Usage Guidelines.

Download manual

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