EarthTronics 10 watt LED, LPD10/G24q/840 easily replaces 13 watt G24q-1 base compact fluorescent lamps and provides 33% energy savings. It is physically the same form factor as the CFQ13W/G24q that it replaces. This lamp produces 800 lumens and works directly on the existing instant start electronic ballast. No rewiring necessary. Available colors include 4000K and 5000K and the CRI rating is >80.