i use my solar system for led light,i use it, old computer heat sink  and old used computer monitor parts,led light very bright and power saving (low power) log life time,so light back panel very hot so need to log time you for heat sink or fan,good for life time led
i use for led drive 230v out 32v led drive    



Mercury-free - no mercury is used in the manufacturing of LEDs.
 what happened mercury cfl,
mercury released from a broken CFL affect health
f mercury is swallowed less than a thousandth is absorbed 
by the body and most of it is eliminated, mainly through the urine and faeces. 
Still, swallowing a high concentration of mercury on the short term can 
lead to severe harmful and even life-threatening effects



 Benefits of LED lightbulbs


Did you know watts don't tell you how bright a light will be?

To compare different light bulbs, you need to know about lumens. Lumens, 
not watts, tell you how bright a light bulb is, no matter the type of bulb. The more lumens, 
the brighter the light. Beginning in 2012, labels on the
 front of light bulb packages now state a bulb's brightness in lumens, 
instead of the bulb's energy usage in watts. For more information, read our article 
Lumens are the new watts.

While lumens is the best measurement of comparative lighting among the various bulbs,
 it is not always a perfect measure. Some floodlights in can lighting use an internal reflector in the 
bulb to send the light facing downward. When shopping for light bulbs, 
note that bulbs equipped with reflectors will deliver increased directional light.

The chart below shows the amount of brigthness in lumes you can expect from 
different wattage light bulbs. The LED bulbs require much less wattage 
than the CFL or Incandescent light bulbs, which is why LED bulbs are more 
energy-efficient and long lasting than the other types of bulb.