2 x Converter: 1 x a + 1 x b Waterproof Level upgrade:IP68,moisture-proof & anti-shock protection. More :built in smart chip, full protection against over/under voltage input, over-current, overload, overhead, over-temperature and short circuit. Better Heat Dissipation:Upgraded fin type heat sink with a thick aluminum plate inside fixture to help to dissipate heat more efficiently.. Sturdy and Safe materials:die-cast aluminum shell and high quality design. 96% conversion efficiency:Synchronization rectification technology-multiple intelligent protection function with high conversion efficiency and stability. Input voltage: 48V Output power: 240W Output voltage: 24V Output current: 10A Working temperature: -40-80℃ Work efficiency: 95% Output voltage accuracy: +/-1% Voltage adjustment rate: +/-1% Scope of application: vehicle power supply, industrial equipment, monitoring, boats, LED lights Protection level: IP68 waterproof size:74x74x32MM Material:aluminum/metal colour:As shown Package Contents: 2 x Converter Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.