This Bulb is great for replacing your standard 12V Halogen spotlight. Be aware that this product is suppossed to have quality Bridgelux LED's and not epistar or other alternative LED's (blue hue is indication that the LED's are not Bridgelux). The LED Bulb will direct light more accurate instead of spreading the light in any direction and the light seems amazing clean and deliberate compared to halogen or other traditional type bulb. It will last five times longer and are shock resistant. In case you drop the bulb it will likely still work. The bulb will not generate UV and heat so you will avoid burns from touching the bulb. The bulb therefore will not melt your lighting fixture or discolor it. The bulb has a 30 degree spread (beam angle), 7000K color temperature (cool white) and 440 Lumen light output. This bulb have 4 high powered individual Bridgelux LED pieces. The light bulb will unfortunately not work in all 12V power sources and you may have to replace the transformer/adaptor main unit if it has a problem with low load (it may work if you leave one halogen bulb to carry some load). The bulbs application is perfect for home, restaurants, shops, office, etc. Also available in color temperatures warm 3200K. Note that the bulb is slightly taller than a standard halogen bulb.