E27 ST58 220V 40W Edison Bulb

CFLs - An electric current flows between electrodes at each end of a tube containing gases. The reaction produces ultraviolet (UV) light and heat. The UV light is transformed into visible light when it strikes a phosphor coating on the inside of the bulb.

Available for outdoor use; just make sure the packaging indicates the bulb is rated for outdoor use.
May not hold up to the stress of power surges. So using them in areas such as workshops is not advisable.
If the outlet is wired for a dimmer or three-way bulb, make sure you purchase a CFL rated for the specific use.

LEDs - Use an electrical current passed through semiconductor material to illuminate the tiny light sources called LEDs.
The heat produced is absorbed into a heat sink, keeping the bulbs cool to the touch.

Available for outdoor use; just make sure the packaging indicates the bulb is rated for outdoor use.
Do not contribute to heat build up which helps save on air conditioning.

Features	Incandescent	CFL	Halogen	LED
Rated Avg, Life	755-1000	10,000	3,000	45,000
Life Span	Low	Long	Medium	Very Long
Watts	3-500	3-120	5-500	25-16
Cost to Operate	High	Low	Medium	Low
Price to Product	Low	Medium	Medium	High
Lumens per Watt(LPW)	15LPW	60LPW	25LPW	75LPW
Color Temperature	2700K	2700K-6500K	3000K	2700K-6500K

TIPS: 1. Please confirm the voltage first. If the voltage of a product is 12V-24V, then you must use a professional LED voltage converter.
2. Please check the specifications of the product carefully before ordering to insure a proper fit.
3. Do not disassemble any bulbs by yourself.
4. Be sure to cut the power off before beginning installation to avoid personal injury.
5. Never exceed the maximum wattage recommended for your lamp.

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