1. Power Requirements
Output Voltage / Current
For a constant voltage led driver, you should consider the output voltage in advance. If your LED requires 12 volts to operate, use a 12-volt driver; if it uses 24 volts, use a 24-volt driver, etc.
Smarts Electronics offers ETL CE Rohs listed 12vdc / 24vdc / 36vdc / 48vdc type constant voltage led driver. When choosing a driver for a constant-current LED, you must also consider the LED’s current output. Smarts Electronics has 300ma 350ma 500ma 700ma 900ma 1050ma 1200ma 1400ma 1750ma 2000ma 2400ma type constant current led driver.
2. Input Voltage
Different countries have different requirement to the input voltage. 100-130vac is for North America and 170-265vac is for Europe. Your driver must accept the input voltage of the place you’re using your light so it can properly step it down to the right output voltage. Smarts Electronics offers 100-265vac / 100-130vac/ 170-265vac input voltage led driver power supply.
3. Max Wattage
Consider the wattage requirements of your light. 90% load is the perfect connection scheme to the led light. Do not pair a driver with a light that exceeds the driver’s maximum wattage or with a light that uses less than 50% of the driver’s maximum wattage.
4. Dimming
Both constant-current and constant-voltage LEDs and drivers can be made with a dimming capability. Smarts Electronics offers three kinds of Dimmable LED Driver. Triac dimmable / DALI Dimmable / 0-10v Dimmable. Different dimming mode has their own connection methods and you should totally connect them Under professional guidance.
5. Safety
UL Class 2 vs UL Class 1
UL Constant Voltage Class 2 LED Driver comply with standard UL1310, meaning output is considered safe to contact and no major safety protection is required at the LED / luminaire level. There is no risk of fire or electric shock. These drivers operate using less than 60 volts (dry) and 30 volts (wet), less than 5 amps, and less than 100 watts. Although safer, these limitations pose restrictions on the number of LEDs a Class 2 driver can operate.
6. Power Factor & Efficiency
The last major characteristic to consider is your driver’s power factor. Power factor tells you how much of a real power load the driver puts on the electrical network.
Another key characteristic to choosing LED drivers is efficiency. Efficiency, expressed as a percentage, tells you how much of the input power the driver can actually use to power the LED.
More details or questions you want to know about led power supply if you want to know, you can login http://www.smarts-electronics.com/ Or contact with Mr. Steven(skype: steven821228)
