Also known as PL-L tubes (a Philips name)...are known as 2G11, 4-pin biax tubes in the lighting industry.

I'm not an expert on these lights...but, a lot of CFL, T-5 & T-8 growers are making the switch to these type of fluoros.

Below is just some raw info...if you want to reseach it farther. Prices are great, especially for DIY peeps...:thumbsup:...enjoy.

36 or 55 watt Bright Kits
Dutch Pimp Reviewed by Dutch Pimp on . L type fluorescent tubes Also known as PL-L tubes (a Philips name)...are known as 2G11, 4-pin biax tubes in the lighting industry. I'm not an expert on these lights...but, a lot of CFL, T-5 & T-8 growers are making the switch to these type of fluoros. Below is just some raw info...if you want to reseach it farther. Prices are great, especially for DIY peeps...:thumbsup:...enjoy. 36 or 55 watt Bright Kits Rating: 5