DIY homemade Mini grow (2x BB Auto)

Homegrown_Hans Hello and welcome to my diary. Thank you for your interest in this DIY grow challange. I set myself the challange to build a growbox and finish the grow without "real" growing Equipment exept the nutrients and soil. Additionally only lights that fit in a E27 socket will be allowed. So no led Bords and the like. I will try to maximise grams per watt in this challange. And will update the added total energy consumption of the grow every week. I will use a lot of unusual and strange led bulbs in this grow. So let us jump in and follow me on this journey. I hope we will learn from this together. Running 20/4 light cycle in seedling and veg 18/6 in flower. Germinated 2 Seeds of Blueberry Auto from Zamnesia in a glass of water on date 01.11.2025 Transplanted the germinated seed 04.11.2025 saw first growth on 06.11.2025. Maybe the 10w Osram led in germination mode is not strong enough for both plants at this hight. Noticing some streching of the seedlings. Ppfd is about 100 at this point. Will monitor and maybe will change to the 20w model. Edit: noticed I was in the flower mode of the 10w Osram... *facepalm* oh well, replaced with 20w Osram in correct setting nontheless. Ppfd is now about 160 in the correct spectrum. Day 2: noticed the plants did not stop stretching. Installed a second light. Now running 2x 10w Osram very close to each plant. This should fix it and I should have done it like this in the first place. But this is why we are here, to learn and overcome the obstacles. 250ppfd each plant now. Fingers crossed. Added pictures of the fixture