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LED Lamp - Driver board question
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<blockquote data-quote="Bruspark" data-source="post: 527511" data-attributes="member: 20106"><p><strong>NO! Ignore the 12V driver comment completely, they are 100% the wrong thing</strong></p><p></p><p></p><p></p><p>AC input voltage: To include the 230-240v range for UK mains. Wider ranges that include 230-240V are fine</p><p></p><p>Dimming: not needed</p><p></p><p><strong>Constant current</strong> output of : 220mA to match existing or 200mA (more common) if you accept the LEDs a bit dimmer</p><p></p><p>Output Power: at 220mA (and 48V) you NEED 10.65W and so you'd <strong>want</strong> at least 15W or 20W rated units if they are to last any longer than the old one. Even larger wattage ratings are probably physically to big but also OK if you find a suitable one that fits</p><p></p><p>Output Voltage: On-load voltage range to include 38 - 48 Volts at the specified 200 or 220mA , a wider range that includes 38 - 48 Volts is also OK</p><p>Theoretically you could accept a slightly lower voltage range if using a 200mA driver (e.g. 33 - 47V) as the LED voltage will be a little less with the slightly less current flowing through them</p><p></p><p>Constant Current ONLY</p><p></p><p></p><p>As said before you need to fully understand what you're doing to proceed, its at your risk, and I'd have bought a new one long ago</p></blockquote><p></p>
[QUOTE="Bruspark, post: 527511, member: 20106"] [B]NO! Ignore the 12V driver comment completely, they are 100% the wrong thing[/B] AC input voltage: To include the 230-240v range for UK mains. Wider ranges that include 230-240V are fine Dimming: not needed [B]Constant current[/B] output of : 220mA to match existing or 200mA (more common) if you accept the LEDs a bit dimmer Output Power: at 220mA (and 48V) you NEED 10.65W and so you'd [B]want[/B] at least 15W or 20W rated units if they are to last any longer than the old one. Even larger wattage ratings are probably physically to big but also OK if you find a suitable one that fits Output Voltage: On-load voltage range to include 38 - 48 Volts at the specified 200 or 220mA , a wider range that includes 38 - 48 Volts is also OK Theoretically you could accept a slightly lower voltage range if using a 200mA driver (e.g. 33 - 47V) as the LED voltage will be a little less with the slightly less current flowing through them Constant Current ONLY As said before you need to fully understand what you're doing to proceed, its at your risk, and I'd have bought a new one long ago [/QUOTE]
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