--- product_id: 400014310 title: "- VAR TECH 3005 B DC Power Supply Variable 30V 5A Transformer Based with Output On/Off Switch" brand: "var tech" price: "£151.41" currency: GBP in_stock: true reviews_count: 8 category: "Var Tech" url: https://www.desertcart.co.uk/products/400014310-var-tech-3005-b-dc-power-supply-variable-30v-5a store_origin: GB region: United Kingdom --- # 30V variable output 5A max current Intelligent cooling & protection - VAR TECH 3005 B DC Power Supply Variable 30V 5A Transformer Based with Output On/Off Switch **Brand:** var tech **Price:** £151.41 **Availability:** ✅ In Stock ## Summary > ⚡ Power your projects with precision and confidence — don’t get left in the dark! ## Quick Answers - **What is this?** - VAR TECH 3005 B DC Power Supply Variable 30V 5A Transformer Based with Output On/Off Switch by var tech - **How much does it cost?** £151.41 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/400014310-var-tech-3005-b-dc-power-supply-variable-30v-5a) ## Best For - var tech enthusiasts ## Why This Product - Trusted var tech brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Stay Cool Under Pressure:** Advanced transformer-based design with intelligent cooling and overheating protection - • **Seamless Power Management:** Output On/Off switch lets you pause output without cutting mains power - • **Precision at Your Fingertips:** Coarse and fine voltage controls for exact tuning every time - • **Built for Industrial Strength:** Robust overload and short circuit protection ensures reliability in demanding environments - • **Visual Clarity, Instant Feedback:** Multicolor 4-digit LED twin meters for real-time voltage and current monitoring ## Overview The VAR TECH 3005 B is a transformer-based DC power supply delivering variable 0-30V and up to 5A current with fine and coarse voltage controls. It features a smart cooling system, overload and short circuit protection, and a vibrant multicolor LED display for precise monitoring. Designed for industrial-grade reliability, it includes an output on/off switch allowing voltage adjustments without disconnecting mains power. ## Description VAR TECH 3005 B DC Power Supply Variable 30V 5A Transformer Based with Output On/Off Switch : desertcart.in: Computers & Accessories Review: Good build quality - Don’t expect the probes, also the ammeter only works when there is load don’t get confused Review: Good quality product, but no cables included - Transformer based power supply. Goes up to 32v 5Amps. The fine tuning knob is a little finicky, but I have a tough time precisely setting the values. It is a minor inconvenience. It did not come with leads and I had to scramble to find something that fits (it uses banana plugs for anyone wondering). I found a old set of multimeter probes which fit. I have used it few times so far and it works fine. Quality of switches and plastic is good. The display is also quite nice. I feel it is about 1k more than other competing products. ## Features - 0 to 30V 0 to 5A variable power supply linear with coarse and fine controls and output on off switch with voltage live control - Transformer based with intelligent cooling system & overheating protection - Multicolour display with 2 led meters, 4 digits each - Industrial grade with overload protection and short circuit protection - Users can pause the output and vary the voltage without turning off the mains - For service and after sales support please feel free to contact us. Our service team will provide all the necessary assistance immediately. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09QM43LBL | | Best Sellers Rank | #6,262 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #67 in Power Supplies (Computers & Accessories) | | Brand | VAR TECH | | Colour | White - Ivory | | Compatible Device | Personal Computer | | Cooling type | Water | | Country of Origin | China | | Customer Reviews | 4.2 4.2 out of 5 stars (59) | | Date First Available | 18 January 2022 | | Form Factor | ATX | | Importer | V A R TECH | | Item Dimensions LxWxH | 27 x 10 x 15 Centimeters | | Item Height | 15 Centimeters | | Item Weight | 4 kg 750 g | | Item Width | 10 Centimeters | | Item model number | 3005 B | | Manufacturer | V A R TECH, www.var-tech.com | | Model number | 3005 B | | Number of Memory Sticks | 1 | | Number of fans | 2 | | Output Wattage | 360 Watts | | PCI-Express connector configuration | ATX | | Packer | V A R TECH | | Power Source | AC | | Product Dimensions | 27 x 10 x 15 cm; 4.75 kg | | Special Feature | Coase and FIne Controls, Intelligent Cooling System, Multicolour 4 Digit LED Twin display, Output On/Off switch | ## Product Details - **Brand:** VAR TECH - **Compatible Devices:** Personal Computer - **Connector Type:** ATX - **Model Name:** 3005 B - **Output Wattage:** 360 Watts ## Images ![- VAR TECH 3005 B DC Power Supply Variable 30V 5A Transformer Based with Output On/Off Switch - Image 1](https://m.media-amazon.com/images/I/71aNHABYU0L.jpg) ## Questions & Answers **Q: Please show the back side of the product in the image. So that we ( buyers ) can check power connector type / back cooling fan /and 110V,220V switch** A: Thanks for your suggestion. We will upload the rear panel image A.S.A.P. Please check the ‘Attachment’ & the following is F.Y.I. :- The Power Connector is a regular 3 Pin (Computer type) Connector. The Colling Fan sits inside the unit & only the Air Vents are cut into the rear panel. To avoid problems (& burn outs) due to mistakes (in our country) we have removed the 110/220V switch itself from the rear panel. However if you want, we can wire it out permanently for 110V & provide you. If you insist we can also provide a switch for this at additional cost. **Q: What is the warranty of this power supply** A: 1 year warranty against manufacturing defects. V A R TECH has a service center with engineers for after sales support throughout the life of the product. **Q: Can I have data on voltage/ampere storage?** A: This is a regular power supply. Whatever you intend to do, you can do it using a Programmable Power Supply or any Power Supply with a PC Interface. **Q: Does it support both 110V and 220V input voltages?** A: There is no 110/220V switch. But we will check Tomorrow physically if it is possible to wire it up for you & let you know. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good build quality *by S***. on 25 January 2025* Don’t expect the probes, also the ammeter only works when there is load don’t get confused ### ⭐⭐⭐⭐ Good quality product, but no cables included *by A***N on 14 June 2023* Transformer based power supply. Goes up to 32v 5Amps. The fine tuning knob is a little finicky, but I have a tough time precisely setting the values. It is a minor inconvenience. It did not come with leads and I had to scramble to find something that fits (it uses banana plugs for anyone wondering). I found a old set of multimeter probes which fit. I have used it few times so far and it works fine. Quality of switches and plastic is good. The display is also quite nice. I feel it is about 1k more than other competing products. ### ⭐⭐⭐⭐⭐ Very good quality power supply. Stable output *by V***R on 7 October 2023* This is our third vartech power supply. Build quality is very good. Heavy transformer is used and the output pausing is helpful. No issues till date. Tech support is also very good as usual from VAR TECH. ## Frequently Bought Together - VAR TECH 3005 B DC Power Supply Variable 30V 5A Transformer Based with Output On/Off Switch - e4u Quality Standard 4mm Banana Plug To 45mm Alligator/Crocodile Clip Red Black Test Probes Pair - 0.5 MTR - Generic PZIN14013619 Imported 10 Pieces 50cm Double Ended Crocodile Clips Cable Alligator Clips Wire Testing --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/400014310-var-tech-3005-b-dc-power-supply-variable-30v-5a](https://www.desertcart.co.uk/products/400014310-var-tech-3005-b-dc-power-supply-variable-30v-5a) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-16*