Pro Shrimp's comment: This is the latest generation of Dennerle heaters, very small and compact with a great design. These are high quality safety heaters with adjustable temperature dial and dry run protection, which protects you from burns and the heater from exploding/shattering because of overheating. These new heaters are made from a special plastic, so no glass involved. 

These are made in Germany and not a cheap build from China! If you should need a 2-pin EURO plug, please let us know during checkout. We deliver these with UK plug or appropriate fully fused UK adapter as standard. 

Adjustable heater for nano aquaria

Nano adjustable safety heater

Nano adjustable safety heater 25 W

• Energy-efficient heating
• Temperature adjustment scale 17-36 °C,
• 16cm total length, 4.8cm wide and only 2.7cm thick
• Super slim and unintrusive
• UK plug (or fused adapter where applicable)
• Semi-electronic temperature control
• With indicator LED and protection against dry running – for safety's sake
• Shatter-proof special plastic
• For fresh- and saltwater