REMINDER - This lamp is NON-Dimmable, DO NOT use with dimmers. - This Gen 2 PL bulb is more shorter than Gen 1 with corresponding base dimension. CAN NOT some lighting fixtures with very intolerant socket like flat desk lights, please check carefully before buying. untried ConfigurationWe our buyers ' suggest, make this bulb erectile and flat jazz group, fit for both wall-mounted and ceiling fixtures. Plug-and-PlayThis Gen 2 stick PL bulb is with magnetised ballast, no need to rewire, just plug in and enjoy the lights. NOTE : shunt operation maybe if the ballast can not work properly. shunt operation could unnecessary 10 % energy saving which was highly recommended. Longer LifespanSilverlite LED bulb is at 50,000 hours. It is 5x than CFLs -LRB- 10,000 hours -RRB-, meaning far fewer service cycles and far fewer replacement bulbs. 5-year pocket-size WarrantySilverlite products are warranted to be costless from defects in workmanship and bodied for 5 years. If it fails to do so, us with order ID to get a replacement. UL Listed for Damp LocationSilverlite PL bulb are UL approved. for control locations where not in exact contact with water and weather. : Can be exploited for most CFL applications : downlights, sconces, sunken cans, ceiling fixtures, bathroom ventilation fans, not for desk lights. : - Power : 5watt - Output : 13watt CFL cognition - Voltage : 120-277V - Brightness : 500lumens - Color Temperature : caring White -LRB- 3000K -RRB- - CRI : 80 + - Operating Temperature : 0 °F to 104 °F.