ventilation exhaust fan, hg power strong exhaust extractor fan wall mount & ceiling exhaust fan built-in household ventilation fans without plug hg power <b>specification:</b> <br><br>blade size: 90mm <br>input: 14w <br>air flow(m2/h):80 <br>noise: 33db <br>install space(d:mm): 100 <br>front panel: 157*157mm <br>panel width: 20mm <br>install size: 60*98mm <br><br><b>note: </b> <br><br>1. waterproof abs plastic material; 14w input; noise 33db. <br>2. 100% copper coil motor and blade size: 90mm. <br>3. 4 inch, suit for kitchen or bathroom with 110v. <br>4. with 2x0.5mm2 power cord&2 round pins plug. <br>5. great square design with indicator light. <br><br><b>note:</b> this product without plug. you can diy what you want.