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Peltier module buying guide

Updated: October 2026

A Peltier module buying guide has to put the 60 W title second. You are looking at 40 mm plates on amazon.co.uk because a 12 V cool box has gone warm, or a bench project needs a cold face. The tile moves heat only when you apply direct current, and the hot face has to reject the heat it pumps plus the electrical power you put in. By the end you should be able to name the family, the voltage, and whether a real heatsink is still to buy. Prices and stars are the shelf figures from the twelve listings in our [Peltier element comparison](/hub/electrical-equipment/peltier-element). We did not run a lab test.

A Peltier module buying guide has to put the 60 W title second. You are looking at 40 mm plates on amazon.co.uk because a 12 V cool box has gone warm, or a bench project needs a cold face.

Our top picks

diymore Diymore TEC1-12706 five-pack

Best overall

diymore Diymore TEC1-12706 five-pack
8.8/10about £15.58
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diymore Diymore TEC1-12706 two-pack

Best value

diymore Diymore TEC1-12706 two-pack
8.8/10about £7.99
View offer
Youmile Youmile SP1848 generator pair

Rank 3

Youmile Youmile SP1848 generator pair
7.2/10about £8.99
View offer
On this page
  1. 1.What you are actually buying
  2. 2.Read Qcmax and delta-T as a pair
  3. 3.Bare plate, small bundle, or assembled kit
  4. 4.What to ignore on the title

What you are actually buying

Start with the job, because the same search mixes four different parts. A TEC pumps heat when you connect a DC supply. A TEG makes a small voltage from a temperature difference and does not need you to feed it 12 V. In this capture the common cooler is the TEC1-12706, a 40 mm single-stage plate sold as a 12 V, 6 A class part. The TEC1-04902 five-pack is about 20 mm and the title says 5 V, 5 A and 10 W, at about £9.98, so it is the wrong spare for a 40 mm cool box. The Youmile SP1848-27145 pair at about £8.99 is the generator. The title also calls it a cooler and prints 150°C, and it gives no Qcmax.

Read Qcmax and delta-T as a pair

Qcmax and the maximum temperature difference sit at opposite ends of the same curve. Hebei's TEC1-12706 sheet is about 50 W Qmax and about 66°C delta-T max at a 25°C hot side. You do not get both at once. A cool box needs a gap and some heat lift together, so the cooling you feel in the cabinet is well under the title. Hapivida lists Qcmax 72 W for the TEC2-19006. Everredtronics lists 36 W for that model at a 30°C hot side. The hot side must reject pumped heat plus electrical input. Envistia's note on a 40 × 40 × 11 mm sink puts that size at a few watts. If the photo is the only sink you will own, you are still shopping.
diymore Diymore TEC1-12706 five-pack

Testsieger

diymore Diymore TEC1-12706 five-pack
8.8/10about £15.58
View offer

Bare plate, small bundle, or assembled kit

A pair, a five-pack, and a kit leave you holding different missing pieces. The diymore pair at about £7.99 is the same family, manual only, and a bullet prints Vmax as 15A, which is a listing error on a voltage field rather than a 15 amp rating. The paste bundle at about £8.99 adds 5 g of HY810 and still uses 40 × 40 × 3.6 mm as a heatsink size, which on sister listings is the module. The five-pack at about £15.58 is five bare tiles and a manual. None of those rows includes a fan. At about £18.78 the Lsgoodcare assembly adds a fan, a radiator and a cold plate, and the noise field says 65 dB while a bullet says no noise. At about £20.99 the kit adds a water-block style hot side and lists 120 W maximum. A USB port will not run a TEC1-12706.

What to ignore on the title

Ignore a lone 60 W, 72 W, or 120 W until you have written down Qcmax, delta-T max, and what is in the box as three separate facts. The Consumer Rights Act 2015 requires goods to match their description, which is a reason to treat a clash as a clash. Also ignore a perfect star line on two ratings. The TEC1-04902 pack is 5.0 from two reviews and is a 20 mm part. The TEC1-12706 five-pack is 4.4 from 450 reviews, and the about £7.99 pair is 4.4 from 249. The DollaTek pair is 4.1 from 111, and one captured test killed both tiles within minutes at or below 7 V, so the lowest price is its own decision. If you need a generator for a stove fan, open the SP1848 row and leave the 60 W coolers.

Common questions

Do I need TEC1-12706 or a smaller 5 V part?
Choose TEC1-12706 when the old part is a 40 mm, 12 V, about 6 A cooler. Choose the TEC1-04902 five-pack when you truly want about 20 mm at 5 V. The title on that pack says 10 W and 5 A, and one buyer measured about 1 A at 5 V. It does not drop into a 12 V cool box in place of a 12706.
Is a kit with a 40 mm fan better than a bare plate?
It is better only when you had no sink at all and you will keep the current low. ALAMSCN's about £10.98 bundle adds two 40 mm fans and two 40 × 40 × 11 mm sinks. A seller note for that sink size is a few watts. A bare plate plus a large sink you already own is the stronger path for a 6 A run.
Can I use the SP1848 listing as a cooler?
The part is an SP1848-27145 TEG with no Qcmax. The sheet quotes about 0.97 V open circuit at a 20°C difference and about 4.8 V at 100°C. One of four tiles in the captured notes would not chill and stayed about 2°C below the warm face. Use it as a small generator.
Does the box include thermal paste?
Only the diymore bundle at about £8.99 clearly does: 5 g of HY810 paste, stated above 4.6 W/m·K, and still no separate sink. The about £7.99 pair, the five-pack, DollaTek, the 12705 pair, and the TEC2 listing do not include paste. The two Lsgoodcare kits leave paste as unknown.
Are these modules covered by the UK low-voltage electrical regulations?
The Electrical Equipment (Safety) Regulations 2016 start at 75 V DC and 50 V AC, so these tiles are outside that instrument. The General Product Safety Regulations 2005 still apply to a consumer product, including foreseeable installation. Powering a bare module is that mistake.

Related pages

Best Peltier module

How to use a Peltier element

Peltier mini cooler kit

Peltier element

Stove fan Peltier replacement: check the generator

Sources

Public UK guides, the Consumer Rights Act 2015 and the datasheets below are the sources for the safety and wattage limits. Shelf prices and star lines are the amazon.co.uk figures in the captured listings, not a live re-scrape.

  1. GOV.UK: Electrical Equipment (Safety) Regulations 2016 (retrieved October 2026)
  2. GOV.UK: General Product Safety Regulations 2005 (retrieved October 2026)
  3. Consumer Rights Act 2015, section 11 (retrieved October 2026)
  4. Hebei TEC1-12706 datasheet (retrieved October 2026)
  5. Envistia TEC1-12706 user guide (retrieved October 2026)
  6. Envistia TEC1-12706 heatsink note (retrieved October 2026)
  7. Everredtronics TEC2 table (retrieved October 2026)
  8. Caframo Ecofan FAQ (retrieved October 2026)