EcoRenovator - View Single Post - A 13 watt CFL uses a lot more power than what it claims.

where2 · 03-31-14, 07:20 PM

My Cree 800 lumen (60W equivalent) warm white, dual bulb frankenlamp settled in twitching back and forth between .90 and .99 on the PF scale of my Kill-a-watt P4400. If I dialed down the dimmer, the PF drove down drastically, but we all know dimmers waste power. With the dimmer on full brightness, the PF seemed to flip-flop between the two readings rhythmically.

I get anywhere from a .49 to a .56 PF on my 3-way CFL bulb, depending on the switch setting. The .49 PF is on the dim setting, the .56 is on the brightest setting.

03-31-14, 07:20 PM	#17
where2 DIY Geek Join Date: Apr 2013 Location: Sunny Florida Posts: 401 Thanks: 74 Thanked 83 Times in 73 Posts	My Cree 800 lumen (60W equivalent) warm white, dual bulb frankenlamp settled in twitching back and forth between .90 and .99 on the PF scale of my Kill-a-watt P4400. If I dialed down the dimmer, the PF drove down drastically, but we all know dimmers waste power. With the dimmer on full brightness, the PF seemed to flip-flop between the two readings rhythmically. I get anywhere from a .49 to a .56 PF on my 3-way CFL bulb, depending on the switch setting. The .49 PF is on the dim setting, the .56 is on the brightest setting.